90415840

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{18229}}^1$

素因数の和:18275

約数の個数: 48

約数和(自身を含む): 220510080

約数和(自身を除く): 130094240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 992, 1240, 2480, 4960, 18229, 36458, 72916, 91145, 145832, 182290, 291664, 364580, 565099, 583328, 729160, 1130198, 1458320, 2260396, 2825495, 2916640, 4520792, 5650990, 9041584, 11301980, 18083168, 22603960, 45207920, 90415840]

約数ペア:

[(1, 90415840), (2, 45207920), (4, 22603960), (5, 18083168), (8, 11301980), (10, 9041584), (16, 5650990), (20, 4520792), (31, 2916640), (32, 2825495), (40, 2260396), (62, 1458320), (80, 1130198), (124, 729160), (155, 583328), (160, 565099), (248, 364580), (310, 291664), (496, 182290), (620, 145832), (992, 91145), (1240, 72916), (2480, 36458), (4960, 18229)]