20398910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{3511}}^1$

素因数の和:3608

約数の個数: 32

約数和(自身を含む): 42481152

約数和(自身を除く): 22082242

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 83, 166, 415, 581, 830, 1162, 2905, 3511, 5810, 7022, 17555, 24577, 35110, 49154, 122885, 245770, 291413, 582826, 1457065, 2039891, 2914130, 4079782, 10199455, 20398910]

約数ペア:

[(1, 20398910), (2, 10199455), (5, 4079782), (7, 2914130), (10, 2039891), (14, 1457065), (35, 582826), (70, 291413), (83, 245770), (166, 122885), (415, 49154), (581, 35110), (830, 24577), (1162, 17555), (2905, 7022), (3511, 5810)]