65981060

素因数分解:

$2^2\times 5^1\times {\mathrm{647}}^1\times {\mathrm{5099}}^1$

素因数の和:5755

約数の個数: 24

約数和(自身を含む): 138801600

約数和(自身を除く): 72820540

約数列:

[1, 2, 4, 5, 10, 20, 647, 1294, 2588, 3235, 5099, 6470, 10198, 12940, 20396, 25495, 50990, 101980, 3299053, 6598106, 13196212, 16495265, 32990530, 65981060]

約数ペア:

[(1, 65981060), (2, 32990530), (4, 16495265), (5, 13196212), (10, 6598106), (20, 3299053), (647, 101980), (1294, 50990), (2588, 25495), (3235, 20396), (5099, 12940), (6470, 10198)]