20867620

素因数分解:

$2^2\times 5^1\times {\mathrm{367}}^1\times {\mathrm{2843}}^1$

素因数の和:3219

約数の個数: 24

約数和(自身を含む): 43956864

約数和(自身を除く): 23089244

約数列:

[1, 2, 4, 5, 10, 20, 367, 734, 1468, 1835, 2843, 3670, 5686, 7340, 11372, 14215, 28430, 56860, 1043381, 2086762, 4173524, 5216905, 10433810, 20867620]

約数ペア:

[(1, 20867620), (2, 10433810), (4, 5216905), (5, 4173524), (10, 2086762), (20, 1043381), (367, 56860), (734, 28430), (1468, 14215), (1835, 11372), (2843, 7340), (3670, 5686)]