20280200

素因数分解:

$2^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{3271}}^1$

素因数の和:3318

約数の個数: 48

約数和(自身を含む): 48687360

約数和(自身を除く): 28407160

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 124, 155, 200, 248, 310, 620, 775, 1240, 1550, 3100, 3271, 6200, 6542, 13084, 16355, 26168, 32710, 65420, 81775, 101401, 130840, 163550, 202802, 327100, 405604, 507005, 654200, 811208, 1014010, 2028020, 2535025, 4056040, 5070050, 10140100, 20280200]

約数ペア:

[(1, 20280200), (2, 10140100), (4, 5070050), (5, 4056040), (8, 2535025), (10, 2028020), (20, 1014010), (25, 811208), (31, 654200), (40, 507005), (50, 405604), (62, 327100), (100, 202802), (124, 163550), (155, 130840), (200, 101401), (248, 81775), (310, 65420), (620, 32710), (775, 26168), (1240, 16355), (1550, 13084), (3100, 6542), (3271, 6200)]