1620565520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{2893867}}^1$

素因数の和:2893887

約数の個数: 40

約数和(自身を含む): 4306075584

約数和(自身を除く): 2685510064

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 2893867, 5787734, 11575468, 14469335, 20257069, 23150936, 28938670, 40514138, 46301872, 57877340, 81028276, 101285345, 115754680, 162056552, 202570690, 231509360, 324113104, 405141380, 810282760, 1620565520]

約数ペア:

[(1, 1620565520), (2, 810282760), (4, 405141380), (5, 324113104), (7, 231509360), (8, 202570690), (10, 162056552), (14, 115754680), (16, 101285345), (20, 81028276), (28, 57877340), (35, 46301872), (40, 40514138), (56, 28938670), (70, 23150936), (80, 20257069), (112, 14469335), (140, 11575468), (280, 5787734), (560, 2893867)]