19870290

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{20071}}^1$

素因数の和:20095

約数の個数: 48

約数和(自身を含む): 56362176

約数和(自身を除く): 36491886

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990, 20071, 40142, 60213, 100355, 120426, 180639, 200710, 220781, 301065, 361278, 441562, 602130, 662343, 903195, 1103905, 1324686, 1806390, 1987029, 2207810, 3311715, 3974058, 6623430, 9935145, 19870290]

約数ペア:

[(1, 19870290), (2, 9935145), (3, 6623430), (5, 3974058), (6, 3311715), (9, 2207810), (10, 1987029), (11, 1806390), (15, 1324686), (18, 1103905), (22, 903195), (30, 662343), (33, 602130), (45, 441562), (55, 361278), (66, 301065), (90, 220781), (99, 200710), (110, 180639), (165, 120426), (198, 100355), (330, 60213), (495, 40142), (990, 20071)]