25820120

素因数分解:

$2^3\times 5^1\times {\mathrm{645503}}^1$

素因数の和:645514

約数の個数: 16

約数和(自身を含む): 58095360

約数和(自身を除く): 32275240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 645503, 1291006, 2582012, 3227515, 5164024, 6455030, 12910060, 25820120]

約数ペア:

[(1, 25820120), (2, 12910060), (4, 6455030), (5, 5164024), (8, 3227515), (10, 2582012), (20, 1291006), (40, 645503)]