251285680

素因数分解:

$2^4\times 5^1\times {\mathrm{571}}^1\times {\mathrm{5501}}^1$

素因数の和:6085

約数の個数: 40

約数和(自身を含む): 585368784

約数和(自身を除く): 334083104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 571, 1142, 2284, 2855, 4568, 5501, 5710, 9136, 11002, 11420, 22004, 22840, 27505, 44008, 45680, 55010, 88016, 110020, 220040, 440080, 3141071, 6282142, 12564284, 15705355, 25128568, 31410710, 50257136, 62821420, 125642840, 251285680]

約数ペア:

[(1, 251285680), (2, 125642840), (4, 62821420), (5, 50257136), (8, 31410710), (10, 25128568), (16, 15705355), (20, 12564284), (40, 6282142), (80, 3141071), (571, 440080), (1142, 220040), (2284, 110020), (2855, 88016), (4568, 55010), (5501, 45680), (5710, 44008), (9136, 27505), (11002, 22840), (11420, 22004)]