401075720

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{73189}}^1$

素因数の和:73337

約数の個数: 32

約数和(自身を含む): 909019800

約数和(自身を除く): 507944080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 5480, 73189, 146378, 292756, 365945, 585512, 731890, 1463780, 2927560, 10026893, 20053786, 40107572, 50134465, 80215144, 100268930, 200537860, 401075720]

約数ペア:

[(1, 401075720), (2, 200537860), (4, 100268930), (5, 80215144), (8, 50134465), (10, 40107572), (20, 20053786), (40, 10026893), (137, 2927560), (274, 1463780), (548, 731890), (685, 585512), (1096, 365945), (1370, 292756), (2740, 146378), (5480, 73189)]