64305625

素因数分解:

$5^4\times {\mathrm{31}}^1\times {\mathrm{3319}}^1$

素因数の和:3370

約数の個数: 20

約数和(自身を含む): 82973440

約数和(自身を除く): 18667815

約数列:

[1, 5, 25, 31, 125, 155, 625, 775, 3319, 3875, 16595, 19375, 82975, 102889, 414875, 514445, 2074375, 2572225, 12861125, 64305625]

約数ペア:

[(1, 64305625), (5, 12861125), (25, 2572225), (31, 2074375), (125, 514445), (155, 414875), (625, 102889), (775, 82975), (3319, 19375), (3875, 16595)]