858485780

素因数分解:

$2^2\times 5^1\times {\mathrm{3259}}^1\times {\mathrm{13171}}^1$

素因数の和:16439

約数の個数: 24

約数和(自身を含む): 1803510240

約数和(自身を除く): 945024460

約数列:

[1, 2, 4, 5, 10, 20, 3259, 6518, 13036, 13171, 16295, 26342, 32590, 52684, 65180, 65855, 131710, 263420, 42924289, 85848578, 171697156, 214621445, 429242890, 858485780]

約数ペア:

[(1, 858485780), (2, 429242890), (4, 214621445), (5, 171697156), (10, 85848578), (20, 42924289), (3259, 263420), (6518, 131710), (13036, 65855), (13171, 65180), (16295, 52684), (26342, 32590)]