168123260

素因数分解:

$2^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{20963}}^1$

素因数の和:21373

約数の個数: 24

約数和(自身を含む): 353956176

約数和(自身を除く): 185832916

約数列:

[1, 2, 4, 5, 10, 20, 401, 802, 1604, 2005, 4010, 8020, 20963, 41926, 83852, 104815, 209630, 419260, 8406163, 16812326, 33624652, 42030815, 84061630, 168123260]

約数ペア:

[(1, 168123260), (2, 84061630), (4, 42030815), (5, 33624652), (10, 16812326), (20, 8406163), (401, 419260), (802, 209630), (1604, 104815), (2005, 83852), (4010, 41926), (8020, 20963)]