20536400

素因数分解:

$2^4\times 5^2\times {\mathrm{51341}}^1$

素因数の和:51359

約数の個数: 30

約数和(自身を含む): 49339662

約数和(自身を除く): 28803262

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 51341, 102682, 205364, 256705, 410728, 513410, 821456, 1026820, 1283525, 2053640, 2567050, 4107280, 5134100, 10268200, 20536400]

約数ペア:

[(1, 20536400), (2, 10268200), (4, 5134100), (5, 4107280), (8, 2567050), (10, 2053640), (16, 1283525), (20, 1026820), (25, 821456), (40, 513410), (50, 410728), (80, 256705), (100, 205364), (200, 102682), (400, 51341)]