28936400

素因数分解:

$2^4\times 5^2\times {\mathrm{72341}}^1$

素因数の和:72359

約数の個数: 30

約数和(自身を含む): 69520662

約数和(自身を除く): 40584262

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 72341, 144682, 289364, 361705, 578728, 723410, 1157456, 1446820, 1808525, 2893640, 3617050, 5787280, 7234100, 14468200, 28936400]

約数ペア:

[(1, 28936400), (2, 14468200), (4, 7234100), (5, 5787280), (8, 3617050), (10, 2893640), (16, 1808525), (20, 1446820), (25, 1157456), (40, 723410), (50, 578728), (80, 361705), (100, 289364), (200, 144682), (400, 72341)]