51555620

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{863}}^1$

素因数の和:1004

約数の個数: 48

約数和(自身を含む): 113218560

約数和(自身を除く): 61662940

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 103, 116, 145, 206, 290, 412, 515, 580, 863, 1030, 1726, 2060, 2987, 3452, 4315, 5974, 8630, 11948, 14935, 17260, 25027, 29870, 50054, 59740, 88889, 100108, 125135, 177778, 250270, 355556, 444445, 500540, 888890, 1777780, 2577781, 5155562, 10311124, 12888905, 25777810, 51555620]

約数ペア:

[(1, 51555620), (2, 25777810), (4, 12888905), (5, 10311124), (10, 5155562), (20, 2577781), (29, 1777780), (58, 888890), (103, 500540), (116, 444445), (145, 355556), (206, 250270), (290, 177778), (412, 125135), (515, 100108), (580, 88889), (863, 59740), (1030, 50054), (1726, 29870), (2060, 25027), (2987, 17260), (3452, 14935), (4315, 11948), (5974, 8630)]