90899740

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{23071}}^1$

素因数の和:23277

約数の個数: 24

約数和(自身を含む): 191866752

約数和(自身を除く): 100967012

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 23071, 46142, 92284, 115355, 230710, 461420, 4544987, 9089974, 18179948, 22724935, 45449870, 90899740]

約数ペア:

[(1, 90899740), (2, 45449870), (4, 22724935), (5, 18179948), (10, 9089974), (20, 4544987), (197, 461420), (394, 230710), (788, 115355), (985, 92284), (1970, 46142), (3940, 23071)]