68178680

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{13421}}^1$

素因数の和:13559

約数の個数: 32

約数和(自身を含む): 154621440

約数和(自身を除く): 86442760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 5080, 13421, 26842, 53684, 67105, 107368, 134210, 268420, 536840, 1704467, 3408934, 6817868, 8522335, 13635736, 17044670, 34089340, 68178680]

約数ペア:

[(1, 68178680), (2, 34089340), (4, 17044670), (5, 13635736), (8, 8522335), (10, 6817868), (20, 3408934), (40, 1704467), (127, 536840), (254, 268420), (508, 134210), (635, 107368), (1016, 67105), (1270, 53684), (2540, 26842), (5080, 13421)]