68812580

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{19009}}^1$

素因数の和:19199

約数の個数: 24

約数和(自身を含む): 145312440

約数和(自身を除く): 76499860

約数列:

[1, 2, 4, 5, 10, 20, 181, 362, 724, 905, 1810, 3620, 19009, 38018, 76036, 95045, 190090, 380180, 3440629, 6881258, 13762516, 17203145, 34406290, 68812580]

約数ペア:

[(1, 68812580), (2, 34406290), (4, 17203145), (5, 13762516), (10, 6881258), (20, 3440629), (181, 380180), (362, 190090), (724, 95045), (905, 76036), (1810, 38018), (3620, 19009)]