20989600

素因数分解:

$2^5\times 5^2\times {\mathrm{26237}}^1$

素因数の和:26257

約数の個数: 36

約数和(自身を含む): 51242814

約数和(自身を除く): 30253214

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 26237, 52474, 104948, 131185, 209896, 262370, 419792, 524740, 655925, 839584, 1049480, 1311850, 2098960, 2623700, 4197920, 5247400, 10494800, 20989600]

約数ペア:

[(1, 20989600), (2, 10494800), (4, 5247400), (5, 4197920), (8, 2623700), (10, 2098960), (16, 1311850), (20, 1049480), (25, 839584), (32, 655925), (40, 524740), (50, 419792), (80, 262370), (100, 209896), (160, 131185), (200, 104948), (400, 52474), (800, 26237)]