420338860

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{239}}^1\times {\mathrm{1871}}^1$

素因数の和:2166

約数の個数: 48

約数和(自身を含む): 905748480

約数和(自身を除く): 485409620

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 239, 470, 478, 940, 956, 1195, 1871, 2390, 3742, 4780, 7484, 9355, 11233, 18710, 22466, 37420, 44932, 56165, 87937, 112330, 175874, 224660, 351748, 439685, 447169, 879370, 894338, 1758740, 1788676, 2235845, 4471690, 8943380, 21016943, 42033886, 84067772, 105084715, 210169430, 420338860]

約数ペア:

[(1, 420338860), (2, 210169430), (4, 105084715), (5, 84067772), (10, 42033886), (20, 21016943), (47, 8943380), (94, 4471690), (188, 2235845), (235, 1788676), (239, 1758740), (470, 894338), (478, 879370), (940, 447169), (956, 439685), (1195, 351748), (1871, 224660), (2390, 175874), (3742, 112330), (4780, 87937), (7484, 56165), (9355, 44932), (11233, 37420), (18710, 22466)]