25931440

素因数分解:

$2^4\times 5^1\times {\mathrm{324143}}^1$

素因数の和:324156

約数の個数: 20

約数和(自身を含む): 60290784

約数和(自身を除く): 34359344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 324143, 648286, 1296572, 1620715, 2593144, 3241430, 5186288, 6482860, 12965720, 25931440]

約数ペア:

[(1, 25931440), (2, 12965720), (4, 6482860), (5, 5186288), (8, 3241430), (10, 2593144), (16, 1620715), (20, 1296572), (40, 648286), (80, 324143)]