647826940

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1116943}}^1$

素因数の和:1116981

約数の個数: 24

約数和(自身を含む): 1407349440

約数和(自身を除く): 759522500

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 1116943, 2233886, 4467772, 5584715, 11169430, 22338860, 32391347, 64782694, 129565388, 161956735, 323913470, 647826940]

約数ペア:

[(1, 647826940), (2, 323913470), (4, 161956735), (5, 129565388), (10, 64782694), (20, 32391347), (29, 22338860), (58, 11169430), (116, 5584715), (145, 4467772), (290, 2233886), (580, 1116943)]