19957625

素因数分解:

$5^3\times {\mathrm{67}}^1\times {\mathrm{2383}}^1$

素因数の和:2465

約数の個数: 16

約数和(自身を含む): 25289472

約数和(自身を除く): 5331847

約数列:

[1, 5, 25, 67, 125, 335, 1675, 2383, 8375, 11915, 59575, 159661, 297875, 798305, 3991525, 19957625]

約数ペア:

[(1, 19957625), (5, 3991525), (25, 798305), (67, 297875), (125, 159661), (335, 59575), (1675, 11915), (2383, 8375)]