25674980

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{6451}}^1$

素因数の和:6659

約数の個数: 24

約数和(自身を含む): 54196800

約数和(自身を除く): 28521820

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 6451, 12902, 25804, 32255, 64510, 129020, 1283749, 2567498, 5134996, 6418745, 12837490, 25674980]

約数ペア:

[(1, 25674980), (2, 12837490), (4, 6418745), (5, 5134996), (10, 2567498), (20, 1283749), (199, 129020), (398, 64510), (796, 32255), (995, 25804), (1990, 12902), (3980, 6451)]