20193994490

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{33104909}}^1$

素因数の和:33104977

約数の個数: 16

約数和(自身を含む): 36945079560

約数和(自身を除く): 16751085070

約数列:

[1, 2, 5, 10, 61, 122, 305, 610, 33104909, 66209818, 165524545, 331049090, 2019399449, 4038798898, 10096997245, 20193994490]

約数ペア:

[(1, 20193994490), (2, 10096997245), (5, 4038798898), (10, 2019399449), (61, 331049090), (122, 165524545), (305, 66209818), (610, 33104909)]