199439080

素因数分解:

$2^3\times 5^1\times {\mathrm{617}}^1\times {\mathrm{8081}}^1$

素因数の和:8709

約数の個数: 32

約数和(自身を含む): 449520840

約数和(自身を除く): 250081760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 617, 1234, 2468, 3085, 4936, 6170, 8081, 12340, 16162, 24680, 32324, 40405, 64648, 80810, 161620, 323240, 4985977, 9971954, 19943908, 24929885, 39887816, 49859770, 99719540, 199439080]

約数ペア:

[(1, 199439080), (2, 99719540), (4, 49859770), (5, 39887816), (8, 24929885), (10, 19943908), (20, 9971954), (40, 4985977), (617, 323240), (1234, 161620), (2468, 80810), (3085, 64648), (4936, 40405), (6170, 32324), (8081, 24680), (12340, 16162)]