51550480

素因数分解:

$2^4\times 5^1\times {\mathrm{644381}}^1$

素因数の和:644394

約数の個数: 20

約数和(自身を含む): 119855052

約数和(自身を除く): 68304572

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 644381, 1288762, 2577524, 3221905, 5155048, 6443810, 10310096, 12887620, 25775240, 51550480]

約数ペア:

[(1, 51550480), (2, 25775240), (4, 12887620), (5, 10310096), (8, 6443810), (10, 5155048), (16, 3221905), (20, 2577524), (40, 1288762), (80, 644381)]