129805640

素因数分解:

$2^3\times 5^1\times {\mathrm{151}}^1\times {\mathrm{21491}}^1$

素因数の和:21653

約数の個数: 32

約数和(自身を含む): 294010560

約数和(自身を除く): 164204920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 151, 302, 604, 755, 1208, 1510, 3020, 6040, 21491, 42982, 85964, 107455, 171928, 214910, 429820, 859640, 3245141, 6490282, 12980564, 16225705, 25961128, 32451410, 64902820, 129805640]

約数ペア:

[(1, 129805640), (2, 64902820), (4, 32451410), (5, 25961128), (8, 16225705), (10, 12980564), (20, 6490282), (40, 3245141), (151, 859640), (302, 429820), (604, 214910), (755, 171928), (1208, 107455), (1510, 85964), (3020, 42982), (6040, 21491)]