20204870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{9311}}^1$

素因数の和:9356

約数の個数: 32

約数和(自身を含む): 42909696

約数和(自身を除く): 22704826

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 155, 217, 310, 434, 1085, 2170, 9311, 18622, 46555, 65177, 93110, 130354, 288641, 325885, 577282, 651770, 1443205, 2020487, 2886410, 4040974, 10102435, 20204870]

約数ペア:

[(1, 20204870), (2, 10102435), (5, 4040974), (7, 2886410), (10, 2020487), (14, 1443205), (31, 651770), (35, 577282), (62, 325885), (70, 288641), (155, 130354), (217, 93110), (310, 65177), (434, 46555), (1085, 18622), (2170, 9311)]