20768711620

素因数分解:

$2^2\times 5^1\times {\mathrm{881}}^1\times {\mathrm{1178701}}^1$

素因数の和:1179591

約数の個数: 24

約数和(自身を含む): 43663836888

約数和(自身を除く): 22895125268

約数列:

[1, 2, 4, 5, 10, 20, 881, 1762, 3524, 4405, 8810, 17620, 1178701, 2357402, 4714804, 5893505, 11787010, 23574020, 1038435581, 2076871162, 4153742324, 5192177905, 10384355810, 20768711620]

約数ペア:

[(1, 20768711620), (2, 10384355810), (4, 5192177905), (5, 4153742324), (10, 2076871162), (20, 1038435581), (881, 23574020), (1762, 11787010), (3524, 5893505), (4405, 4714804), (8810, 2357402), (17620, 1178701)]