126319640

素因数分解:

$2^3\times 5^1\times {\mathrm{3157991}}^1$

素因数の和:3158002

約数の個数: 16

約数和(自身を含む): 284219280

約数和(自身を除く): 157899640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3157991, 6315982, 12631964, 15789955, 25263928, 31579910, 63159820, 126319640]

約数ペア:

[(1, 126319640), (2, 63159820), (4, 31579910), (5, 25263928), (8, 15789955), (10, 12631964), (20, 6315982), (40, 3157991)]