51081200

素因数分解:

$2^4\times 5^2\times {\mathrm{127703}}^1$

素因数の和:127721

約数の個数: 30

約数和(自身を含む): 122723544

約数和(自身を除く): 71642344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 127703, 255406, 510812, 638515, 1021624, 1277030, 2043248, 2554060, 3192575, 5108120, 6385150, 10216240, 12770300, 25540600, 51081200]

約数ペア:

[(1, 51081200), (2, 25540600), (4, 12770300), (5, 10216240), (8, 6385150), (10, 5108120), (16, 3192575), (20, 2554060), (25, 2043248), (40, 1277030), (50, 1021624), (80, 638515), (100, 510812), (200, 255406), (400, 127703)]