18750280

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{3691}}^1$

素因数の和:3829

約数の個数: 32

約数和(自身を含む): 42531840

約数和(自身を除く): 23781560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 3691, 5080, 7382, 14764, 18455, 29528, 36910, 73820, 147640, 468757, 937514, 1875028, 2343785, 3750056, 4687570, 9375140, 18750280]

約数ペア:

[(1, 18750280), (2, 9375140), (4, 4687570), (5, 3750056), (8, 2343785), (10, 1875028), (20, 937514), (40, 468757), (127, 147640), (254, 73820), (508, 36910), (635, 29528), (1016, 18455), (1270, 14764), (2540, 7382), (3691, 5080)]