149719280

素因数分解:

$2^4\times 5^1\times {\mathrm{1871491}}^1$

素因数の和:1871504

約数の個数: 20

約数和(自身を含む): 348097512

約数和(自身を除く): 198378232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1871491, 3742982, 7485964, 9357455, 14971928, 18714910, 29943856, 37429820, 74859640, 149719280]

約数ペア:

[(1, 149719280), (2, 74859640), (4, 37429820), (5, 29943856), (8, 18714910), (10, 14971928), (16, 9357455), (20, 7485964), (40, 3742982), (80, 1871491)]