31156040

素因数分解:

$2^3\times 5^1\times {\mathrm{239}}^1\times {\mathrm{3259}}^1$

素因数の和:3509

約数の個数: 32

約数和(自身を含む): 70416000

約数和(自身を除く): 39259960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 239, 478, 956, 1195, 1912, 2390, 3259, 4780, 6518, 9560, 13036, 16295, 26072, 32590, 65180, 130360, 778901, 1557802, 3115604, 3894505, 6231208, 7789010, 15578020, 31156040]

約数ペア:

[(1, 31156040), (2, 15578020), (4, 7789010), (5, 6231208), (8, 3894505), (10, 3115604), (20, 1557802), (40, 778901), (239, 130360), (478, 65180), (956, 32590), (1195, 26072), (1912, 16295), (2390, 13036), (3259, 9560), (4780, 6518)]