31143760

素因数分解:

$2^4\times 5^1\times {\mathrm{389297}}^1$

素因数の和:389310

約数の個数: 20

約数和(自身を含む): 72409428

約数和(自身を除く): 41265668

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 389297, 778594, 1557188, 1946485, 3114376, 3892970, 6228752, 7785940, 15571880, 31143760]

約数ペア:

[(1, 31143760), (2, 15571880), (4, 7785940), (5, 6228752), (8, 3892970), (10, 3114376), (16, 1946485), (20, 1557188), (40, 778594), (80, 389297)]