129764375

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{15971}}^1$

素因数の和:16004

約数の個数: 20

約数和(自身を含む): 174637848

約数和(自身を除く): 44873473

約数列:

[1, 5, 13, 25, 65, 125, 325, 625, 1625, 8125, 15971, 79855, 207623, 399275, 1038115, 1996375, 5190575, 9981875, 25952875, 129764375]

約数ペア:

[(1, 129764375), (5, 25952875), (13, 9981875), (25, 5190575), (65, 1996375), (125, 1038115), (325, 399275), (625, 207623), (1625, 79855), (8125, 15971)]