20237059900

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{43177}}^1$

素因数の和:43343

約数の個数: 72

約数和(自身を含む): 45348989840

約数和(自身を除く): 25111929940

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 109, 172, 215, 218, 430, 436, 545, 860, 1075, 1090, 2150, 2180, 2725, 4300, 4687, 5450, 9374, 10900, 18748, 23435, 43177, 46870, 86354, 93740, 117175, 172708, 215885, 234350, 431770, 468700, 863540, 1079425, 1856611, 2158850, 3713222, 4317700, 4706293, 7426444, 9283055, 9412586, 18566110, 18825172, 23531465, 37132220, 46415275, 47062930, 92830550, 94125860, 117657325, 185661100, 202370599, 235314650, 404741198, 470629300, 809482396, 1011852995, 2023705990, 4047411980, 5059264975, 10118529950, 20237059900]

約数ペア:

[(1, 20237059900), (2, 10118529950), (4, 5059264975), (5, 4047411980), (10, 2023705990), (20, 1011852995), (25, 809482396), (43, 470629300), (50, 404741198), (86, 235314650), (100, 202370599), (109, 185661100), (172, 117657325), (215, 94125860), (218, 92830550), (430, 47062930), (436, 46415275), (545, 37132220), (860, 23531465), (1075, 18825172), (1090, 18566110), (2150, 9412586), (2180, 9283055), (2725, 7426444), (4300, 4706293), (4687, 4317700), (5450, 3713222), (9374, 2158850), (10900, 1856611), (18748, 1079425), (23435, 863540), (43177, 468700), (46870, 431770), (86354, 234350), (93740, 215885), (117175, 172708)]