20158270

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{401}}^1\times {\mathrm{457}}^1$

素因数の和:876

約数の個数: 32

約数和(自身を含む): 39769056

約数和(自身を除く): 19610786

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 401, 457, 802, 914, 2005, 2285, 4010, 4411, 4570, 5027, 8822, 10054, 22055, 25135, 44110, 50270, 183257, 366514, 916285, 1832570, 2015827, 4031654, 10079135, 20158270]

約数ペア:

[(1, 20158270), (2, 10079135), (5, 4031654), (10, 2015827), (11, 1832570), (22, 916285), (55, 366514), (110, 183257), (401, 50270), (457, 44110), (802, 25135), (914, 22055), (2005, 10054), (2285, 8822), (4010, 5027), (4411, 4570)]