20248000

素因数分解:

$2^6\times 5^3\times {\mathrm{2531}}^1$

素因数の和:2558

約数の個数: 56

約数和(自身を含む): 50163984

約数和(自身を除く): 29915984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 160, 200, 250, 320, 400, 500, 800, 1000, 1600, 2000, 2531, 4000, 5062, 8000, 10124, 12655, 20248, 25310, 40496, 50620, 63275, 80992, 101240, 126550, 161984, 202480, 253100, 316375, 404960, 506200, 632750, 809920, 1012400, 1265500, 2024800, 2531000, 4049600, 5062000, 10124000, 20248000]

約数ペア:

[(1, 20248000), (2, 10124000), (4, 5062000), (5, 4049600), (8, 2531000), (10, 2024800), (16, 1265500), (20, 1012400), (25, 809920), (32, 632750), (40, 506200), (50, 404960), (64, 316375), (80, 253100), (100, 202480), (125, 161984), (160, 126550), (200, 101240), (250, 80992), (320, 63275), (400, 50620), (500, 40496), (800, 25310), (1000, 20248), (1600, 12655), (2000, 10124), (2531, 8000), (4000, 5062)]