165980975

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{2711}}^1$

素因数の和:2831

約数の個数: 24

約数和(自身を含む): 215224320

約数和(自身を除く): 49243345

約数列:

[1, 5, 25, 31, 79, 155, 395, 775, 1975, 2449, 2711, 12245, 13555, 61225, 67775, 84041, 214169, 420205, 1070845, 2101025, 5354225, 6639239, 33196195, 165980975]

約数ペア:

[(1, 165980975), (5, 33196195), (25, 6639239), (31, 5354225), (79, 2101025), (155, 1070845), (395, 420205), (775, 214169), (1975, 84041), (2449, 67775), (2711, 61225), (12245, 13555)]