64684625

素因数分解:

$5^3\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{151}}^1$

素因数の和:338

約数の個数: 32

約数和(自身を含む): 85363200

約数和(自身を除く): 20678575

約数列:

[1, 5, 23, 25, 115, 125, 149, 151, 575, 745, 755, 2875, 3427, 3473, 3725, 3775, 17135, 17365, 18625, 18875, 22499, 85675, 86825, 112495, 428375, 434125, 517477, 562475, 2587385, 2812375, 12936925, 64684625]

約数ペア:

[(1, 64684625), (5, 12936925), (23, 2812375), (25, 2587385), (115, 562475), (125, 517477), (149, 434125), (151, 428375), (575, 112495), (745, 86825), (755, 85675), (2875, 22499), (3427, 18875), (3473, 18625), (3725, 17365), (3775, 17135)]