204535280

素因数分解:

$2^4\times 5^1\times {\mathrm{149}}^1\times {\mathrm{17159}}^1$

素因数の和:17321

約数の個数: 40

約数和(自身を含む): 478764000

約数和(自身を除く): 274228720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 149, 298, 596, 745, 1192, 1490, 2384, 2980, 5960, 11920, 17159, 34318, 68636, 85795, 137272, 171590, 274544, 343180, 686360, 1372720, 2556691, 5113382, 10226764, 12783455, 20453528, 25566910, 40907056, 51133820, 102267640, 204535280]

約数ペア:

[(1, 204535280), (2, 102267640), (4, 51133820), (5, 40907056), (8, 25566910), (10, 20453528), (16, 12783455), (20, 10226764), (40, 5113382), (80, 2556691), (149, 1372720), (298, 686360), (596, 343180), (745, 274544), (1192, 171590), (1490, 137272), (2384, 85795), (2980, 68636), (5960, 34318), (11920, 17159)]