2019486475

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{809}}^1\times {\mathrm{3221}}^1$

素因数の和:4071

約数の個数: 24

約数和(自身を含む): 2588941440

約数和(自身を除く): 569454965

約数列:

[1, 5, 25, 31, 155, 775, 809, 3221, 4045, 16105, 20225, 25079, 80525, 99851, 125395, 499255, 626975, 2496275, 2605789, 13028945, 65144725, 80779459, 403897295, 2019486475]

約数ペア:

[(1, 2019486475), (5, 403897295), (25, 80779459), (31, 65144725), (155, 13028945), (775, 2605789), (809, 2496275), (3221, 626975), (4045, 499255), (16105, 125395), (20225, 99851), (25079, 80525)]