256470620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1831933}}^1$

素因数の和:1831949

約数の個数: 24

約数和(自身を含む): 615529824

約数和(自身を除く): 359059204

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1831933, 3663866, 7327732, 9159665, 12823531, 18319330, 25647062, 36638660, 51294124, 64117655, 128235310, 256470620]

約数ペア:

[(1, 256470620), (2, 128235310), (4, 64117655), (5, 51294124), (7, 36638660), (10, 25647062), (14, 18319330), (20, 12823531), (28, 9159665), (35, 7327732), (70, 3663866), (140, 1831933)]