31629260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{509}}^1$

素因数の和:770

約数の個数: 48

約数和(自身を含む): 71971200

約数和(自身を除く): 40341940

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 239, 260, 478, 509, 956, 1018, 1195, 2036, 2390, 2545, 3107, 4780, 5090, 6214, 6617, 10180, 12428, 13234, 15535, 26468, 31070, 33085, 62140, 66170, 121651, 132340, 243302, 486604, 608255, 1216510, 1581463, 2433020, 3162926, 6325852, 7907315, 15814630, 31629260]

約数ペア:

[(1, 31629260), (2, 15814630), (4, 7907315), (5, 6325852), (10, 3162926), (13, 2433020), (20, 1581463), (26, 1216510), (52, 608255), (65, 486604), (130, 243302), (239, 132340), (260, 121651), (478, 66170), (509, 62140), (956, 33085), (1018, 31070), (1195, 26468), (2036, 15535), (2390, 13234), (2545, 12428), (3107, 10180), (4780, 6617), (5090, 6214)]