57421640

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{8807}}^1$

素因数の和:8981

約数の個数: 32

約数和(自身を含む): 130006080

約数和(自身を除く): 72584440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 8807, 17614, 35228, 44035, 70456, 88070, 176140, 352280, 1435541, 2871082, 5742164, 7177705, 11484328, 14355410, 28710820, 57421640]

約数ペア:

[(1, 57421640), (2, 28710820), (4, 14355410), (5, 11484328), (8, 7177705), (10, 5742164), (20, 2871082), (40, 1435541), (163, 352280), (326, 176140), (652, 88070), (815, 70456), (1304, 44035), (1630, 35228), (3260, 17614), (6520, 8807)]