3139975

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:171

約数の個数: 24

約数和(自身を含む): 4151520

約数和(自身を除く): 1011545

約数列:

[1, 5, 25, 29, 61, 71, 145, 305, 355, 725, 1525, 1769, 1775, 2059, 4331, 8845, 10295, 21655, 44225, 51475, 108275, 125599, 627995, 3139975]

約数ペア:

[(1, 3139975), (5, 627995), (25, 125599), (29, 108275), (61, 51475), (71, 44225), (145, 21655), (305, 10295), (355, 8845), (725, 4331), (1525, 2059), (1769, 1775)]