156966875

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{19319}}^1$

素因数の和:19352

約数の個数: 20

約数和(自身を含む): 211244880

約数和(自身を除く): 54278005

約数列:

[1, 5, 13, 25, 65, 125, 325, 625, 1625, 8125, 19319, 96595, 251147, 482975, 1255735, 2414875, 6278675, 12074375, 31393375, 156966875]

約数ペア:

[(1, 156966875), (5, 31393375), (13, 12074375), (25, 6278675), (65, 2414875), (125, 1255735), (325, 482975), (625, 251147), (1625, 96595), (8125, 19319)]