90136400

素因数分解:

$2^4\times 5^2\times {\mathrm{225341}}^1$

素因数の和:225359

約数の個数: 30

約数和(自身を含む): 216553662

約数和(自身を除く): 126417262

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 225341, 450682, 901364, 1126705, 1802728, 2253410, 3605456, 4506820, 5633525, 9013640, 11267050, 18027280, 22534100, 45068200, 90136400]

約数ペア:

[(1, 90136400), (2, 45068200), (4, 22534100), (5, 18027280), (8, 11267050), (10, 9013640), (16, 5633525), (20, 4506820), (25, 3605456), (40, 2253410), (50, 1802728), (80, 1126705), (100, 901364), (200, 450682), (400, 225341)]