15564980

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{4957}}^1$

素因数の和:5123

約数の個数: 24

約数和(自身を含む): 32901288

約数和(自身を除く): 17336308

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 4957, 9914, 19828, 24785, 49570, 99140, 778249, 1556498, 3112996, 3891245, 7782490, 15564980]

約数ペア:

[(1, 15564980), (2, 7782490), (4, 3891245), (5, 3112996), (10, 1556498), (20, 778249), (157, 99140), (314, 49570), (628, 24785), (785, 19828), (1570, 9914), (3140, 4957)]