208375420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{22027}}^1$

素因数の和:22090

約数の個数: 48

約数和(自身を含む): 488492928

約数和(自身を除く): 280117508

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 215, 220, 430, 473, 860, 946, 1892, 2365, 4730, 9460, 22027, 44054, 88108, 110135, 220270, 242297, 440540, 484594, 947161, 969188, 1211485, 1894322, 2422970, 3788644, 4735805, 4845940, 9471610, 10418771, 18943220, 20837542, 41675084, 52093855, 104187710, 208375420]

約数ペア:

[(1, 208375420), (2, 104187710), (4, 52093855), (5, 41675084), (10, 20837542), (11, 18943220), (20, 10418771), (22, 9471610), (43, 4845940), (44, 4735805), (55, 3788644), (86, 2422970), (110, 1894322), (172, 1211485), (215, 969188), (220, 947161), (430, 484594), (473, 440540), (860, 242297), (946, 220270), (1892, 110135), (2365, 88108), (4730, 44054), (9460, 22027)]