137991980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{985657}}^1$

素因数の和:985673

約数の個数: 24

約数和(自身を含む): 331181088

約数和(自身を除く): 193189108

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 985657, 1971314, 3942628, 4928285, 6899599, 9856570, 13799198, 19713140, 27598396, 34497995, 68995990, 137991980]

約数ペア:

[(1, 137991980), (2, 68995990), (4, 34497995), (5, 27598396), (7, 19713140), (10, 13799198), (14, 9856570), (20, 6899599), (28, 4928285), (35, 3942628), (70, 1971314), (140, 985657)]