18728450

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{28813}}^1$

素因数の和:28838

約数の個数: 24

約数和(自身を含む): 37515828

約数和(自身を除く): 18787378

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 28813, 57626, 144065, 288130, 374569, 720325, 749138, 1440650, 1872845, 3745690, 9364225, 18728450]

約数ペア:

[(1, 18728450), (2, 9364225), (5, 3745690), (10, 1872845), (13, 1440650), (25, 749138), (26, 720325), (50, 374569), (65, 288130), (130, 144065), (325, 57626), (650, 28813)]