278313125

素因数分解:

$5^4\times {\mathrm{41}}^1\times {\mathrm{10861}}^1$

素因数の和:10922

約数の個数: 20

約数和(自身を含む): 356295324

約数和(自身を除く): 77982199

約数列:

[1, 5, 25, 41, 125, 205, 625, 1025, 5125, 10861, 25625, 54305, 271525, 445301, 1357625, 2226505, 6788125, 11132525, 55662625, 278313125]

約数ペア:

[(1, 278313125), (5, 55662625), (25, 11132525), (41, 6788125), (125, 2226505), (205, 1357625), (625, 445301), (1025, 271525), (5125, 54305), (10861, 25625)]