20984060

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{12641}}^1$

素因数の和:12733

約数の個数: 24

約数和(自身を含む): 44600976

約数和(自身を除く): 23616916

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 12641, 25282, 50564, 63205, 126410, 252820, 1049203, 2098406, 4196812, 5246015, 10492030, 20984060]

約数ペア:

[(1, 20984060), (2, 10492030), (4, 5246015), (5, 4196812), (10, 2098406), (20, 1049203), (83, 252820), (166, 126410), (332, 63205), (415, 50564), (830, 25282), (1660, 12641)]