72474800

素因数分解:

$2^4\times 5^2\times {\mathrm{409}}^1\times {\mathrm{443}}^1$

素因数の和:870

約数の個数: 60

約数和(自身を含む): 174940440

約数和(自身を除く): 102465640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 409, 443, 818, 886, 1636, 1772, 2045, 2215, 3272, 3544, 4090, 4430, 6544, 7088, 8180, 8860, 10225, 11075, 16360, 17720, 20450, 22150, 32720, 35440, 40900, 44300, 81800, 88600, 163600, 177200, 181187, 362374, 724748, 905935, 1449496, 1811870, 2898992, 3623740, 4529675, 7247480, 9059350, 14494960, 18118700, 36237400, 72474800]

約数ペア:

[(1, 72474800), (2, 36237400), (4, 18118700), (5, 14494960), (8, 9059350), (10, 7247480), (16, 4529675), (20, 3623740), (25, 2898992), (40, 1811870), (50, 1449496), (80, 905935), (100, 724748), (200, 362374), (400, 181187), (409, 177200), (443, 163600), (818, 88600), (886, 81800), (1636, 44300), (1772, 40900), (2045, 35440), (2215, 32720), (3272, 22150), (3544, 20450), (4090, 17720), (4430, 16360), (6544, 11075), (7088, 10225), (8180, 8860)]