25578020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{98377}}^1$

素因数の和:98399

約数の個数: 24

約数和(自身を含む): 57846264

約数和(自身を除く): 32268244

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 98377, 196754, 393508, 491885, 983770, 1278901, 1967540, 2557802, 5115604, 6394505, 12789010, 25578020]

約数ペア:

[(1, 25578020), (2, 12789010), (4, 6394505), (5, 5115604), (10, 2557802), (13, 1967540), (20, 1278901), (26, 983770), (52, 491885), (65, 393508), (130, 196754), (260, 98377)]