18979968005

素因数分解:

$5^1\times {\mathrm{211}}^1\times {\mathrm{4441}}^1\times {\mathrm{4051}}^1$

素因数の和:8708

約数の個数: 16

約数和(自身を含む): 22894707648

約数和(自身を除く): 3914739643

約数列:

[1, 5, 211, 1055, 4051, 4441, 20255, 22205, 854761, 937051, 4273805, 4685255, 17990491, 89952455, 3795993601, 18979968005]

約数ペア:

[(1, 18979968005), (5, 3795993601), (211, 89952455), (1055, 17990491), (4051, 4685255), (4441, 4273805), (20255, 937051), (22205, 854761)]