20399684780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53683381}}^1$

素因数の和:53683409

約数の個数: 24

約数和(自身を含む): 45094040880

約数和(自身を除く): 24694356100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 53683381, 107366762, 214733524, 268416905, 536833810, 1019984239, 1073667620, 2039968478, 4079936956, 5099921195, 10199842390, 20399684780]

約数ペア:

[(1, 20399684780), (2, 10199842390), (4, 5099921195), (5, 4079936956), (10, 2039968478), (19, 1073667620), (20, 1019984239), (38, 536833810), (76, 268416905), (95, 214733524), (190, 107366762), (380, 53683381)]