28531640

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{9029}}^1$

素因数の和:9119

約数の個数: 32

約数和(自身を含む): 65016000

約数和(自身を除く): 36484360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 9029, 18058, 36116, 45145, 72232, 90290, 180580, 361160, 713291, 1426582, 2853164, 3566455, 5706328, 7132910, 14265820, 28531640]

約数ペア:

[(1, 28531640), (2, 14265820), (4, 7132910), (5, 5706328), (8, 3566455), (10, 2853164), (20, 1426582), (40, 713291), (79, 361160), (158, 180580), (316, 90290), (395, 72232), (632, 45145), (790, 36116), (1580, 18058), (3160, 9029)]