640494720

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{211}}^1$

素因数の和:284

約数の個数: 384

約数和(自身を含む): 2428807680

約数和(自身を除く): 1788312960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 30, 31, 32, 34, 36, 40, 45, 48, 51, 60, 62, 64, 68, 72, 80, 85, 90, 93, 96, 102, 120, 124, 128, 136, 144, 153, 155, 160, 170, 180, 186, 192, 204, 211, 240, 248, 255, 272, 279, 288, 306, 310, 320, 340, 360, 372, 384, 408, 422, 465, 480, 496, 510, 527, 544, 558, 576, 612, 620, 633, 640, 680, 720, 744, 765, 816, 844, 930, 960, 992, 1020, 1054, 1055, 1088, 1116, 1152, 1224, 1240, 1266, 1360, 1395, 1440, 1488, 1530, 1581, 1632, 1688, 1860, 1899, 1920, 1984, 2040, 2108, 2110, 2176, 2232, 2448, 2480, 2532, 2635, 2720, 2790, 2880, 2976, 3060, 3162, 3165, 3264, 3376, 3587, 3720, 3798, 3968, 4080, 4216, 4220, 4464, 4743, 4896, 4960, 5064, 5270, 5440, 5580, 5760, 5952, 6120, 6324, 6330, 6528, 6541, 6752, 7174, 7440, 7596, 7905, 8160, 8432, 8440, 8928, 9486, 9495, 9792, 9920, 10128, 10540, 10761, 10880, 11160, 11904, 12240, 12648, 12660, 13082, 13504, 14348, 14880, 15192, 15810, 16320, 16864, 16880, 17856, 17935, 18972, 18990, 19584, 19623, 19840, 20256, 21080, 21522, 22320, 23715, 24480, 25296, 25320, 26164, 27008, 28696, 29760, 30384, 31620, 32283, 32640, 32705, 33728, 33760, 35712, 35870, 37944, 37980, 39246, 40512, 42160, 43044, 44640, 47430, 48960, 50592, 50640, 52328, 53805, 57392, 58869, 59520, 60768, 63240, 64566, 65410, 67456, 67520, 71740, 75888, 75960, 78492, 81024, 84320, 86088, 89280, 94860, 97920, 98115, 101184, 101280, 104656, 107610, 111197, 114784, 117738, 121536, 126480, 129132, 130820, 135040, 143480, 151776, 151920, 156984, 161415, 168640, 172176, 178560, 189720, 196230, 202368, 202560, 209312, 215220, 222394, 229568, 235476, 243072, 252960, 258264, 261640, 286960, 294345, 303552, 303840, 313968, 322830, 333591, 337280, 344352, 379440, 392460, 405120, 418624, 430440, 444788, 459136, 470952, 505920, 516528, 523280, 555985, 573920, 588690, 607104, 607680, 627936, 645660, 667182, 688704, 758880, 784920, 837248, 860880, 889576, 941904, 1000773, 1011840, 1033056, 1046560, 1111970, 1147840, 1177380, 1215360, 1255872, 1291320, 1334364, 1377408, 1517760, 1569840, 1667955, 1721760, 1779152, 1883808, 2001546, 2066112, 2093120, 2223940, 2295680, 2354760, 2511744, 2582640, 2668728, 3035520, 3139680, 3335910, 3443520, 3558304, 3767616, 4003092, 4132224, 4186240, 4447880, 4709520, 5003865, 5165280, 5337456, 6279360, 6671820, 6887040, 7116608, 7535232, 8006184, 8895760, 9419040, 10007730, 10330560, 10674912, 12558720, 13343640, 14233216, 16012368, 17791520, 18838080, 20015460, 20661120, 21349824, 26687280, 32024736, 35583040, 37676160, 40030920, 42699648, 53374560, 64049472, 71166080, 80061840, 106749120, 128098944, 160123680, 213498240, 320247360, 640494720]

約数ペア:

[(1, 640494720), (2, 320247360), (3, 213498240), (4, 160123680), (5, 128098944), (6, 106749120), (8, 80061840), (9, 71166080), (10, 64049472), (12, 53374560), (15, 42699648), (16, 40030920), (17, 37676160), (18, 35583040), (20, 32024736), (24, 26687280), (30, 21349824), (31, 20661120), (32, 20015460), (34, 18838080), (36, 17791520), (40, 16012368), (45, 14233216), (48, 13343640), (51, 12558720), (60, 10674912), (62, 10330560), (64, 10007730), (68, 9419040), (72, 8895760), (80, 8006184), (85, 7535232), (90, 7116608), (93, 6887040), (96, 6671820), (102, 6279360), (120, 5337456), (124, 5165280), (128, 5003865), (136, 4709520), (144, 4447880), (153, 4186240), (155, 4132224), (160, 4003092), (170, 3767616), (180, 3558304), (186, 3443520), (192, 3335910), (204, 3139680), (211, 3035520), (240, 2668728), (248, 2582640), (255, 2511744), (272, 2354760), (279, 2295680), (288, 2223940), (306, 2093120), (310, 2066112), (320, 2001546), (340, 1883808), (360, 1779152), (372, 1721760), (384, 1667955), (408, 1569840), (422, 1517760), (465, 1377408), (480, 1334364), (496, 1291320), (510, 1255872), (527, 1215360), (544, 1177380), (558, 1147840), (576, 1111970), (612, 1046560), (620, 1033056), (633, 1011840), (640, 1000773), (680, 941904), (720, 889576), (744, 860880), (765, 837248), (816, 784920), (844, 758880), (930, 688704), (960, 667182), (992, 645660), (1020, 627936), (1054, 607680), (1055, 607104), (1088, 588690), (1116, 573920), (1152, 555985), (1224, 523280), (1240, 516528), (1266, 505920), (1360, 470952), (1395, 459136), (1440, 444788), (1488, 430440), (1530, 418624), (1581, 405120), (1632, 392460), (1688, 379440), (1860, 344352), (1899, 337280), (1920, 333591), (1984, 322830), (2040, 313968), (2108, 303840), (2110, 303552), (2176, 294345), (2232, 286960), (2448, 261640), (2480, 258264), (2532, 252960), (2635, 243072), (2720, 235476), (2790, 229568), (2880, 222394), (2976, 215220), (3060, 209312), (3162, 202560), (3165, 202368), (3264, 196230), (3376, 189720), (3587, 178560), (3720, 172176), (3798, 168640), (3968, 161415), (4080, 156984), (4216, 151920), (4220, 151776), (4464, 143480), (4743, 135040), (4896, 130820), (4960, 129132), (5064, 126480), (5270, 121536), (5440, 117738), (5580, 114784), (5760, 111197), (5952, 107610), (6120, 104656), (6324, 101280), (6330, 101184), (6528, 98115), (6541, 97920), (6752, 94860), (7174, 89280), (7440, 86088), (7596, 84320), (7905, 81024), (8160, 78492), (8432, 75960), (8440, 75888), (8928, 71740), (9486, 67520), (9495, 67456), (9792, 65410), (9920, 64566), (10128, 63240), (10540, 60768), (10761, 59520), (10880, 58869), (11160, 57392), (11904, 53805), (12240, 52328), (12648, 50640), (12660, 50592), (13082, 48960), (13504, 47430), (14348, 44640), (14880, 43044), (15192, 42160), (15810, 40512), (16320, 39246), (16864, 37980), (16880, 37944), (17856, 35870), (17935, 35712), (18972, 33760), (18990, 33728), (19584, 32705), (19623, 32640), (19840, 32283), (20256, 31620), (21080, 30384), (21522, 29760), (22320, 28696), (23715, 27008), (24480, 26164), (25296, 25320)]