155807725

素因数分解:

$5^2\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{1439}}^1$

素因数の和:1581

約数の個数: 24

約数和(自身を含む): 199272960

約数和(自身を除く): 43465235

約数列:

[1, 5, 25, 61, 71, 305, 355, 1439, 1525, 1775, 4331, 7195, 21655, 35975, 87779, 102169, 108275, 438895, 510845, 2194475, 2554225, 6232309, 31161545, 155807725]

約数ペア:

[(1, 155807725), (5, 31161545), (25, 6232309), (61, 2554225), (71, 2194475), (305, 510845), (355, 438895), (1439, 108275), (1525, 102169), (1775, 87779), (4331, 35975), (7195, 21655)]