157629520

素因数分解:

$2^4\times 5^1\times {\mathrm{1970369}}^1$

素因数の和:1970382

約数の個数: 20

約数和(自身を含む): 366488820

約数和(自身を除く): 208859300

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1970369, 3940738, 7881476, 9851845, 15762952, 19703690, 31525904, 39407380, 78814760, 157629520]

約数ペア:

[(1, 157629520), (2, 78814760), (4, 39407380), (5, 31525904), (8, 19703690), (10, 15762952), (16, 9851845), (20, 7881476), (40, 3940738), (80, 1970369)]