89818780

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{317}}^1\times {\mathrm{457}}^1$

素因数の和:814

約数の個数: 48

約数和(自身を含む): 195745536

約数和(自身を除く): 105926756

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 317, 457, 620, 634, 914, 1268, 1585, 1828, 2285, 3170, 4570, 6340, 9140, 9827, 14167, 19654, 28334, 39308, 49135, 56668, 70835, 98270, 141670, 144869, 196540, 283340, 289738, 579476, 724345, 1448690, 2897380, 4490939, 8981878, 17963756, 22454695, 44909390, 89818780]

約数ペア:

[(1, 89818780), (2, 44909390), (4, 22454695), (5, 17963756), (10, 8981878), (20, 4490939), (31, 2897380), (62, 1448690), (124, 724345), (155, 579476), (310, 289738), (317, 283340), (457, 196540), (620, 144869), (634, 141670), (914, 98270), (1268, 70835), (1585, 56668), (1828, 49135), (2285, 39308), (3170, 28334), (4570, 19654), (6340, 14167), (9140, 9827)]