2019905920

素因数分解:

$2^7\times 5^1\times {\mathrm{3156103}}^1$

素因数の和:3156122

約数の個数: 32

約数和(自身を含む): 4828839120

約数和(自身を除く): 2808933200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 3156103, 6312206, 12624412, 15780515, 25248824, 31561030, 50497648, 63122060, 100995296, 126244120, 201990592, 252488240, 403981184, 504976480, 1009952960, 2019905920]

約数ペア:

[(1, 2019905920), (2, 1009952960), (4, 504976480), (5, 403981184), (8, 252488240), (10, 201990592), (16, 126244120), (20, 100995296), (32, 63122060), (40, 50497648), (64, 31561030), (80, 25248824), (128, 15780515), (160, 12624412), (320, 6312206), (640, 3156103)]