8136400

素因数分解:

$2^4\times 5^2\times {\mathrm{20341}}^1$

素因数の和:20359

約数の個数: 30

約数和(自身を含む): 19548662

約数和(自身を除く): 11412262

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 20341, 40682, 81364, 101705, 162728, 203410, 325456, 406820, 508525, 813640, 1017050, 1627280, 2034100, 4068200, 8136400]

約数ペア:

[(1, 8136400), (2, 4068200), (4, 2034100), (5, 1627280), (8, 1017050), (10, 813640), (16, 508525), (20, 406820), (25, 325456), (40, 203410), (50, 162728), (80, 101705), (100, 81364), (200, 40682), (400, 20341)]