20565200

素因数分解:

$2^4\times 5^2\times {\mathrm{51413}}^1$

素因数の和:51431

約数の個数: 30

約数和(自身を含む): 49408854

約数和(自身を除く): 28843654

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 51413, 102826, 205652, 257065, 411304, 514130, 822608, 1028260, 1285325, 2056520, 2570650, 4113040, 5141300, 10282600, 20565200]

約数ペア:

[(1, 20565200), (2, 10282600), (4, 5141300), (5, 4113040), (8, 2570650), (10, 2056520), (16, 1285325), (20, 1028260), (25, 822608), (40, 514130), (50, 411304), (80, 257065), (100, 205652), (200, 102826), (400, 51413)]