291263290

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{631}}^1\times {\mathrm{1489}}^1$

素因数の和:2158

約数の個数: 32

約数和(自身を含む): 542407680

約数和(自身を除く): 251144390

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 631, 1262, 1489, 2978, 3155, 6310, 7445, 14890, 19561, 39122, 46159, 92318, 97805, 195610, 230795, 461590, 939559, 1879118, 4697795, 9395590, 29126329, 58252658, 145631645, 291263290]

約数ペア:

[(1, 291263290), (2, 145631645), (5, 58252658), (10, 29126329), (31, 9395590), (62, 4697795), (155, 1879118), (310, 939559), (631, 461590), (1262, 230795), (1489, 195610), (2978, 97805), (3155, 92318), (6310, 46159), (7445, 39122), (14890, 19561)]