1978385280

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{773}}^1$

素因数の和:869

約数の個数: 256

約数和(自身を含む): 6669527040

約数和(自身を除く): 4691141760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 43, 48, 60, 62, 64, 80, 86, 93, 96, 120, 124, 128, 129, 155, 160, 172, 186, 192, 215, 240, 248, 258, 310, 320, 344, 372, 384, 430, 465, 480, 496, 516, 620, 640, 645, 688, 744, 773, 860, 930, 960, 992, 1032, 1240, 1290, 1333, 1376, 1488, 1546, 1720, 1860, 1920, 1984, 2064, 2319, 2480, 2580, 2666, 2752, 2976, 3092, 3440, 3720, 3865, 3968, 3999, 4128, 4638, 4960, 5160, 5332, 5504, 5952, 6184, 6665, 6880, 7440, 7730, 7998, 8256, 9276, 9920, 10320, 10664, 11595, 11904, 12368, 13330, 13760, 14880, 15460, 15996, 16512, 18552, 19840, 19995, 20640, 21328, 23190, 23963, 24736, 26660, 27520, 29760, 30920, 31992, 33239, 37104, 39990, 41280, 42656, 46380, 47926, 49472, 53320, 59520, 61840, 63984, 66478, 71889, 74208, 79980, 82560, 85312, 92760, 95852, 98944, 99717, 106640, 119815, 123680, 127968, 132956, 143778, 148416, 159960, 166195, 170624, 185520, 191704, 199434, 213280, 239630, 247360, 255936, 265912, 287556, 296832, 319920, 332390, 359445, 371040, 383408, 398868, 426560, 479260, 494720, 498585, 511872, 531824, 575112, 639840, 664780, 718890, 742080, 766816, 797736, 853120, 958520, 997170, 1030409, 1063648, 1150224, 1279680, 1329560, 1437780, 1484160, 1533632, 1595472, 1917040, 1994340, 2060818, 2127296, 2300448, 2559360, 2659120, 2875560, 3067264, 3091227, 3190944, 3834080, 3988680, 4121636, 4254592, 4600896, 5152045, 5318240, 5751120, 6182454, 6381888, 7668160, 7977360, 8243272, 9201792, 10304090, 10636480, 11502240, 12364908, 12763776, 15336320, 15456135, 15954720, 16486544, 20608180, 21272960, 23004480, 24729816, 30912270, 31909440, 32973088, 41216360, 46008960, 49459632, 61824540, 63818880, 65946176, 82432720, 98919264, 123649080, 131892352, 164865440, 197838528, 247298160, 329730880, 395677056, 494596320, 659461760, 989192640, 1978385280]

約数ペア:

[(1, 1978385280), (2, 989192640), (3, 659461760), (4, 494596320), (5, 395677056), (6, 329730880), (8, 247298160), (10, 197838528), (12, 164865440), (15, 131892352), (16, 123649080), (20, 98919264), (24, 82432720), (30, 65946176), (31, 63818880), (32, 61824540), (40, 49459632), (43, 46008960), (48, 41216360), (60, 32973088), (62, 31909440), (64, 30912270), (80, 24729816), (86, 23004480), (93, 21272960), (96, 20608180), (120, 16486544), (124, 15954720), (128, 15456135), (129, 15336320), (155, 12763776), (160, 12364908), (172, 11502240), (186, 10636480), (192, 10304090), (215, 9201792), (240, 8243272), (248, 7977360), (258, 7668160), (310, 6381888), (320, 6182454), (344, 5751120), (372, 5318240), (384, 5152045), (430, 4600896), (465, 4254592), (480, 4121636), (496, 3988680), (516, 3834080), (620, 3190944), (640, 3091227), (645, 3067264), (688, 2875560), (744, 2659120), (773, 2559360), (860, 2300448), (930, 2127296), (960, 2060818), (992, 1994340), (1032, 1917040), (1240, 1595472), (1290, 1533632), (1333, 1484160), (1376, 1437780), (1488, 1329560), (1546, 1279680), (1720, 1150224), (1860, 1063648), (1920, 1030409), (1984, 997170), (2064, 958520), (2319, 853120), (2480, 797736), (2580, 766816), (2666, 742080), (2752, 718890), (2976, 664780), (3092, 639840), (3440, 575112), (3720, 531824), (3865, 511872), (3968, 498585), (3999, 494720), (4128, 479260), (4638, 426560), (4960, 398868), (5160, 383408), (5332, 371040), (5504, 359445), (5952, 332390), (6184, 319920), (6665, 296832), (6880, 287556), (7440, 265912), (7730, 255936), (7998, 247360), (8256, 239630), (9276, 213280), (9920, 199434), (10320, 191704), (10664, 185520), (11595, 170624), (11904, 166195), (12368, 159960), (13330, 148416), (13760, 143778), (14880, 132956), (15460, 127968), (15996, 123680), (16512, 119815), (18552, 106640), (19840, 99717), (19995, 98944), (20640, 95852), (21328, 92760), (23190, 85312), (23963, 82560), (24736, 79980), (26660, 74208), (27520, 71889), (29760, 66478), (30920, 63984), (31992, 61840), (33239, 59520), (37104, 53320), (39990, 49472), (41280, 47926), (42656, 46380)]