381377960

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{89107}}^1$

素因数の和:89225

約数の個数: 32

約数和(自身を含む): 866129760

約数和(自身を除く): 484751800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 856, 1070, 2140, 4280, 89107, 178214, 356428, 445535, 712856, 891070, 1782140, 3564280, 9534449, 19068898, 38137796, 47672245, 76275592, 95344490, 190688980, 381377960]

約数ペア:

[(1, 381377960), (2, 190688980), (4, 95344490), (5, 76275592), (8, 47672245), (10, 38137796), (20, 19068898), (40, 9534449), (107, 3564280), (214, 1782140), (428, 891070), (535, 712856), (856, 445535), (1070, 356428), (2140, 178214), (4280, 89107)]