20175625

素因数分解:

$5^4\times {\mathrm{19}}^1\times {\mathrm{1699}}^1$

素因数の和:1738

約数の個数: 20

約数和(自身を含む): 26554000

約数和(自身を除く): 6378375

約数列:

[1, 5, 19, 25, 95, 125, 475, 625, 1699, 2375, 8495, 11875, 32281, 42475, 161405, 212375, 807025, 1061875, 4035125, 20175625]

約数ペア:

[(1, 20175625), (5, 4035125), (19, 1061875), (25, 807025), (95, 212375), (125, 161405), (475, 42475), (625, 32281), (1699, 11875), (2375, 8495)]