290351960

素因数分解:

$2^3\times 5^1\times {\mathrm{2161}}^1\times {\mathrm{3359}}^1$

素因数の和:5531

約数の個数: 32

約数和(自身を含む): 653788800

約数和(自身を除く): 363436840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2161, 3359, 4322, 6718, 8644, 10805, 13436, 16795, 17288, 21610, 26872, 33590, 43220, 67180, 86440, 134360, 7258799, 14517598, 29035196, 36293995, 58070392, 72587990, 145175980, 290351960]

約数ペア:

[(1, 290351960), (2, 145175980), (4, 72587990), (5, 58070392), (8, 36293995), (10, 29035196), (20, 14517598), (40, 7258799), (2161, 134360), (3359, 86440), (4322, 67180), (6718, 43220), (8644, 33590), (10805, 26872), (13436, 21610), (16795, 17288)]