661601920

素因数分解:

$2^7\times 5^1\times 7^2\times {\mathrm{17}}^2\times {\mathrm{73}}^1$

素因数の和:140

約数の個数: 288

約数和(自身を含む): 1981236780

約数和(自身を除く): 1319634860

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 32, 34, 35, 40, 49, 56, 64, 68, 70, 73, 80, 85, 98, 112, 119, 128, 136, 140, 146, 160, 170, 196, 224, 238, 245, 272, 280, 289, 292, 320, 340, 365, 392, 448, 476, 490, 511, 544, 560, 578, 584, 595, 640, 680, 730, 784, 833, 896, 952, 980, 1022, 1088, 1120, 1156, 1168, 1190, 1241, 1360, 1445, 1460, 1568, 1666, 1904, 1960, 2023, 2044, 2176, 2240, 2312, 2336, 2380, 2482, 2555, 2720, 2890, 2920, 3136, 3332, 3577, 3808, 3920, 4046, 4088, 4165, 4480, 4624, 4672, 4760, 4964, 5110, 5440, 5780, 5840, 6205, 6272, 6664, 7154, 7616, 7840, 8092, 8176, 8330, 8687, 9248, 9344, 9520, 9928, 10115, 10220, 10880, 11560, 11680, 12410, 13328, 14161, 14308, 15232, 15680, 16184, 16352, 16660, 17374, 17885, 18496, 19040, 19856, 20230, 20440, 21097, 23120, 23360, 24820, 26656, 28322, 28616, 31360, 32368, 32704, 33320, 34748, 35770, 36992, 38080, 39712, 40460, 40880, 42194, 43435, 46240, 46720, 49640, 53312, 56644, 57232, 60809, 64736, 65408, 66640, 69496, 70805, 71540, 76160, 79424, 80920, 81760, 84388, 86870, 92480, 99280, 105485, 106624, 113288, 114464, 121618, 129472, 133280, 138992, 141610, 143080, 147679, 158848, 161840, 163520, 168776, 173740, 184960, 198560, 210970, 226576, 228928, 243236, 258944, 266560, 277984, 283220, 286160, 295358, 304045, 323680, 327040, 337552, 347480, 397120, 421940, 453152, 457856, 486472, 533120, 555968, 566440, 572320, 590716, 608090, 647360, 675104, 694960, 738395, 794240, 843880, 906304, 972944, 1033753, 1111936, 1132880, 1144640, 1181432, 1216180, 1294720, 1350208, 1389920, 1476790, 1687760, 1812608, 1945888, 2067506, 2265760, 2289280, 2362864, 2432360, 2700416, 2779840, 2953580, 3375520, 3891776, 4135012, 4531520, 4725728, 4864720, 5168765, 5559680, 5907160, 6751040, 7783552, 8270024, 9063040, 9451456, 9729440, 10337530, 11814320, 13502080, 16540048, 18902912, 19458880, 20675060, 23628640, 33080096, 38917760, 41350120, 47257280, 66160192, 82700240, 94514560, 132320384, 165400480, 330800960, 661601920]

約数ペア:

[(1, 661601920), (2, 330800960), (4, 165400480), (5, 132320384), (7, 94514560), (8, 82700240), (10, 66160192), (14, 47257280), (16, 41350120), (17, 38917760), (20, 33080096), (28, 23628640), (32, 20675060), (34, 19458880), (35, 18902912), (40, 16540048), (49, 13502080), (56, 11814320), (64, 10337530), (68, 9729440), (70, 9451456), (73, 9063040), (80, 8270024), (85, 7783552), (98, 6751040), (112, 5907160), (119, 5559680), (128, 5168765), (136, 4864720), (140, 4725728), (146, 4531520), (160, 4135012), (170, 3891776), (196, 3375520), (224, 2953580), (238, 2779840), (245, 2700416), (272, 2432360), (280, 2362864), (289, 2289280), (292, 2265760), (320, 2067506), (340, 1945888), (365, 1812608), (392, 1687760), (448, 1476790), (476, 1389920), (490, 1350208), (511, 1294720), (544, 1216180), (560, 1181432), (578, 1144640), (584, 1132880), (595, 1111936), (640, 1033753), (680, 972944), (730, 906304), (784, 843880), (833, 794240), (896, 738395), (952, 694960), (980, 675104), (1022, 647360), (1088, 608090), (1120, 590716), (1156, 572320), (1168, 566440), (1190, 555968), (1241, 533120), (1360, 486472), (1445, 457856), (1460, 453152), (1568, 421940), (1666, 397120), (1904, 347480), (1960, 337552), (2023, 327040), (2044, 323680), (2176, 304045), (2240, 295358), (2312, 286160), (2336, 283220), (2380, 277984), (2482, 266560), (2555, 258944), (2720, 243236), (2890, 228928), (2920, 226576), (3136, 210970), (3332, 198560), (3577, 184960), (3808, 173740), (3920, 168776), (4046, 163520), (4088, 161840), (4165, 158848), (4480, 147679), (4624, 143080), (4672, 141610), (4760, 138992), (4964, 133280), (5110, 129472), (5440, 121618), (5780, 114464), (5840, 113288), (6205, 106624), (6272, 105485), (6664, 99280), (7154, 92480), (7616, 86870), (7840, 84388), (8092, 81760), (8176, 80920), (8330, 79424), (8687, 76160), (9248, 71540), (9344, 70805), (9520, 69496), (9928, 66640), (10115, 65408), (10220, 64736), (10880, 60809), (11560, 57232), (11680, 56644), (12410, 53312), (13328, 49640), (14161, 46720), (14308, 46240), (15232, 43435), (15680, 42194), (16184, 40880), (16352, 40460), (16660, 39712), (17374, 38080), (17885, 36992), (18496, 35770), (19040, 34748), (19856, 33320), (20230, 32704), (20440, 32368), (21097, 31360), (23120, 28616), (23360, 28322), (24820, 26656)]