28785800

素因数分解:

$2^3\times 5^2\times {\mathrm{163}}^1\times {\mathrm{883}}^1$

素因数の和:1062

約数の個数: 48

約数和(自身を含む): 67413840

約数和(自身を除く): 38628040

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 163, 200, 326, 652, 815, 883, 1304, 1630, 1766, 3260, 3532, 4075, 4415, 6520, 7064, 8150, 8830, 16300, 17660, 22075, 32600, 35320, 44150, 88300, 143929, 176600, 287858, 575716, 719645, 1151432, 1439290, 2878580, 3598225, 5757160, 7196450, 14392900, 28785800]

約数ペア:

[(1, 28785800), (2, 14392900), (4, 7196450), (5, 5757160), (8, 3598225), (10, 2878580), (20, 1439290), (25, 1151432), (40, 719645), (50, 575716), (100, 287858), (163, 176600), (200, 143929), (326, 88300), (652, 44150), (815, 35320), (883, 32600), (1304, 22075), (1630, 17660), (1766, 16300), (3260, 8830), (3532, 8150), (4075, 7064), (4415, 6520)]