63920980

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{20357}}^1$

素因数の和:20523

約数の個数: 24

約数和(自身を含む): 135095688

約数和(自身を除く): 71174708

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 20357, 40714, 81428, 101785, 203570, 407140, 3196049, 6392098, 12784196, 15980245, 31960490, 63920980]

約数ペア:

[(1, 63920980), (2, 31960490), (4, 15980245), (5, 12784196), (10, 6392098), (20, 3196049), (157, 407140), (314, 203570), (628, 101785), (785, 81428), (1570, 40714), (3140, 20357)]