87383180

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{181}}^1\times {\mathrm{239}}^1$

素因数の和:530

約数の個数: 48

約数和(自身を含む): 187125120

約数和(自身を除く): 99741940

約数列:

[1, 2, 4, 5, 10, 20, 101, 181, 202, 239, 362, 404, 478, 505, 724, 905, 956, 1010, 1195, 1810, 2020, 2390, 3620, 4780, 18281, 24139, 36562, 43259, 48278, 73124, 86518, 91405, 96556, 120695, 173036, 182810, 216295, 241390, 365620, 432590, 482780, 865180, 4369159, 8738318, 17476636, 21845795, 43691590, 87383180]

約数ペア:

[(1, 87383180), (2, 43691590), (4, 21845795), (5, 17476636), (10, 8738318), (20, 4369159), (101, 865180), (181, 482780), (202, 432590), (239, 365620), (362, 241390), (404, 216295), (478, 182810), (505, 173036), (724, 120695), (905, 96556), (956, 91405), (1010, 86518), (1195, 73124), (1810, 48278), (2020, 43259), (2390, 36562), (3620, 24139), (4780, 18281)]