51409660

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{12917}}^1$

素因数の和:13125

約数の個数: 24

約数和(自身を含む): 108511200

約数和(自身を除く): 57101540

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 12917, 25834, 51668, 64585, 129170, 258340, 2570483, 5140966, 10281932, 12852415, 25704830, 51409660]

約数ペア:

[(1, 51409660), (2, 25704830), (4, 12852415), (5, 10281932), (10, 5140966), (20, 2570483), (199, 258340), (398, 129170), (796, 64585), (995, 51668), (1990, 25834), (3980, 12917)]