39111820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{1279}}^1$

素因数の和:1438

約数の個数: 48

約数和(自身を含む): 90316800

約数和(自身を除く): 51204980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 139, 220, 278, 556, 695, 1279, 1390, 1529, 2558, 2780, 3058, 5116, 6116, 6395, 7645, 12790, 14069, 15290, 25580, 28138, 30580, 56276, 70345, 140690, 177781, 281380, 355562, 711124, 888905, 1777810, 1955591, 3555620, 3911182, 7822364, 9777955, 19555910, 39111820]

約数ペア:

[(1, 39111820), (2, 19555910), (4, 9777955), (5, 7822364), (10, 3911182), (11, 3555620), (20, 1955591), (22, 1777810), (44, 888905), (55, 711124), (110, 355562), (139, 281380), (220, 177781), (278, 140690), (556, 70345), (695, 56276), (1279, 30580), (1390, 28138), (1529, 25580), (2558, 15290), (2780, 14069), (3058, 12790), (5116, 7645), (6116, 6395)]