25578215

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{6451}}^1$

素因数の和:6530

約数の個数: 16

約数和(自身を含む): 33602016

約数和(自身を除く): 8023801

約数列:

[1, 5, 13, 61, 65, 305, 793, 3965, 6451, 32255, 83863, 393511, 419315, 1967555, 5115643, 25578215]

約数ペア:

[(1, 25578215), (5, 5115643), (13, 1967555), (61, 419315), (65, 393511), (305, 83863), (793, 32255), (3965, 6451)]