19880800

素因数分解:

$2^5\times 5^2\times {\mathrm{24851}}^1$

素因数の和:24871

約数の個数: 36

約数和(自身を含む): 48535956

約数和(自身を除く): 28655156

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 24851, 49702, 99404, 124255, 198808, 248510, 397616, 497020, 621275, 795232, 994040, 1242550, 1988080, 2485100, 3976160, 4970200, 9940400, 19880800]

約数ペア:

[(1, 19880800), (2, 9940400), (4, 4970200), (5, 3976160), (8, 2485100), (10, 1988080), (16, 1242550), (20, 994040), (25, 795232), (32, 621275), (40, 497020), (50, 397616), (80, 248510), (100, 198808), (160, 124255), (200, 99404), (400, 49702), (800, 24851)]