395994080

素因数分解:

$2^5\times 5^1\times {\mathrm{199}}^1\times {\mathrm{12437}}^1$

素因数の和:12651

約数の個数: 48

約数和(自身を含む): 940312800

約数和(自身を除く): 544318720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 199, 398, 796, 995, 1592, 1990, 3184, 3980, 6368, 7960, 12437, 15920, 24874, 31840, 49748, 62185, 99496, 124370, 198992, 248740, 397984, 497480, 994960, 1989920, 2474963, 4949926, 9899852, 12374815, 19799704, 24749630, 39599408, 49499260, 79198816, 98998520, 197997040, 395994080]

約数ペア:

[(1, 395994080), (2, 197997040), (4, 98998520), (5, 79198816), (8, 49499260), (10, 39599408), (16, 24749630), (20, 19799704), (32, 12374815), (40, 9899852), (80, 4949926), (160, 2474963), (199, 1989920), (398, 994960), (796, 497480), (995, 397984), (1592, 248740), (1990, 198992), (3184, 124370), (3980, 99496), (6368, 62185), (7960, 49748), (12437, 31840), (15920, 24874)]