90049420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{2381}}^1$

素因数の和:2482

約数の個数: 48

約数和(自身を含む): 198487296

約数和(自身を除く): 108437876

約数列:

[1, 2, 4, 5, 10, 20, 31, 61, 62, 122, 124, 155, 244, 305, 310, 610, 620, 1220, 1891, 2381, 3782, 4762, 7564, 9455, 9524, 11905, 18910, 23810, 37820, 47620, 73811, 145241, 147622, 290482, 295244, 369055, 580964, 726205, 738110, 1452410, 1476220, 2904820, 4502471, 9004942, 18009884, 22512355, 45024710, 90049420]

約数ペア:

[(1, 90049420), (2, 45024710), (4, 22512355), (5, 18009884), (10, 9004942), (20, 4502471), (31, 2904820), (61, 1476220), (62, 1452410), (122, 738110), (124, 726205), (155, 580964), (244, 369055), (305, 295244), (310, 290482), (610, 147622), (620, 145241), (1220, 73811), (1891, 47620), (2381, 37820), (3782, 23810), (4762, 18910), (7564, 11905), (9455, 9524)]