180861520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{2963}}^1$

素因数の和:3092

約数の個数: 80

約数和(自身を含む): 485147520

約数和(自身を除く): 304286000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 109, 112, 140, 218, 280, 436, 545, 560, 763, 872, 1090, 1526, 1744, 2180, 2963, 3052, 3815, 4360, 5926, 6104, 7630, 8720, 11852, 12208, 14815, 15260, 20741, 23704, 29630, 30520, 41482, 47408, 59260, 61040, 82964, 103705, 118520, 165928, 207410, 237040, 322967, 331856, 414820, 645934, 829640, 1291868, 1614835, 1659280, 2260769, 2583736, 3229670, 4521538, 5167472, 6459340, 9043076, 11303845, 12918680, 18086152, 22607690, 25837360, 36172304, 45215380, 90430760, 180861520]

約数ペア:

[(1, 180861520), (2, 90430760), (4, 45215380), (5, 36172304), (7, 25837360), (8, 22607690), (10, 18086152), (14, 12918680), (16, 11303845), (20, 9043076), (28, 6459340), (35, 5167472), (40, 4521538), (56, 3229670), (70, 2583736), (80, 2260769), (109, 1659280), (112, 1614835), (140, 1291868), (218, 829640), (280, 645934), (436, 414820), (545, 331856), (560, 322967), (763, 237040), (872, 207410), (1090, 165928), (1526, 118520), (1744, 103705), (2180, 82964), (2963, 61040), (3052, 59260), (3815, 47408), (4360, 41482), (5926, 30520), (6104, 29630), (7630, 23704), (8720, 20741), (11852, 15260), (12208, 14815)]