209439080

素因数分解:

$2^3\times 5^1\times {\mathrm{421}}^1\times {\mathrm{12437}}^1$

素因数の和:12869

約数の個数: 32

約数和(自身を含む): 472395240

約数和(自身を除く): 262956160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 421, 842, 1684, 2105, 3368, 4210, 8420, 12437, 16840, 24874, 49748, 62185, 99496, 124370, 248740, 497480, 5235977, 10471954, 20943908, 26179885, 41887816, 52359770, 104719540, 209439080]

約数ペア:

[(1, 209439080), (2, 104719540), (4, 52359770), (5, 41887816), (8, 26179885), (10, 20943908), (20, 10471954), (40, 5235977), (421, 497480), (842, 248740), (1684, 124370), (2105, 99496), (3368, 62185), (4210, 49748), (8420, 24874), (12437, 16840)]