2109017090

素因数分解:

$2^1\times 5^1\times {\mathrm{881}}^1\times {\mathrm{239389}}^1$

素因数の和:240277

約数の個数: 16

約数和(自身を含む): 3800555640

約数和(自身を除く): 1691538550

約数列:

[1, 2, 5, 10, 881, 1762, 4405, 8810, 239389, 478778, 1196945, 2393890, 210901709, 421803418, 1054508545, 2109017090]

約数ペア:

[(1, 2109017090), (2, 1054508545), (5, 421803418), (10, 210901709), (881, 2393890), (1762, 1196945), (4405, 478778), (8810, 239389)]