345371560

素因数分解:

$2^3\times 5^1\times {\mathrm{421}}^1\times {\mathrm{20509}}^1$

素因数の和:20941

約数の個数: 32

約数和(自身を含む): 778969800

約数和(自身を除く): 433598240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 421, 842, 1684, 2105, 3368, 4210, 8420, 16840, 20509, 41018, 82036, 102545, 164072, 205090, 410180, 820360, 8634289, 17268578, 34537156, 43171445, 69074312, 86342890, 172685780, 345371560]

約数ペア:

[(1, 345371560), (2, 172685780), (4, 86342890), (5, 69074312), (8, 43171445), (10, 34537156), (20, 17268578), (40, 8634289), (421, 820360), (842, 410180), (1684, 205090), (2105, 164072), (3368, 102545), (4210, 82036), (8420, 41018), (16840, 20509)]