858026980

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{263}}^1\times {\mathrm{1039}}^1$

素因数の和:1468

約数の個数: 48

約数和(自身を含む): 1821980160

約数和(自身を除く): 963953180

約数列:

[1, 2, 4, 5, 10, 20, 157, 263, 314, 526, 628, 785, 1039, 1052, 1315, 1570, 2078, 2630, 3140, 4156, 5195, 5260, 10390, 20780, 41291, 82582, 163123, 165164, 206455, 273257, 326246, 412910, 546514, 652492, 815615, 825820, 1093028, 1366285, 1631230, 2732570, 3262460, 5465140, 42901349, 85802698, 171605396, 214506745, 429013490, 858026980]

約数ペア:

[(1, 858026980), (2, 429013490), (4, 214506745), (5, 171605396), (10, 85802698), (20, 42901349), (157, 5465140), (263, 3262460), (314, 2732570), (526, 1631230), (628, 1366285), (785, 1093028), (1039, 825820), (1052, 815615), (1315, 652492), (1570, 546514), (2078, 412910), (2630, 326246), (3140, 273257), (4156, 206455), (5195, 165164), (5260, 163123), (10390, 82582), (20780, 41291)]