320480225

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{577}}^1\times {\mathrm{1709}}^1$

素因数の和:2309

約数の個数: 24

約数和(自身を含む): 428956920

約数和(自身を除く): 108476695

約数列:

[1, 5, 13, 25, 65, 325, 577, 1709, 2885, 7501, 8545, 14425, 22217, 37505, 42725, 111085, 187525, 555425, 986093, 4930465, 12819209, 24652325, 64096045, 320480225]

約数ペア:

[(1, 320480225), (5, 64096045), (13, 24652325), (25, 12819209), (65, 4930465), (325, 986093), (577, 555425), (1709, 187525), (2885, 111085), (7501, 42725), (8545, 37505), (14425, 22217)]