20858750

素因数分解:

$2^1\times 5^4\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:111

約数の個数: 80

約数和(自身を含む): 44873136

約数和(自身を除く): 24014386

約数列:

[1, 2, 5, 10, 11, 22, 25, 37, 41, 50, 55, 74, 82, 110, 125, 185, 205, 250, 275, 370, 407, 410, 451, 550, 625, 814, 902, 925, 1025, 1250, 1375, 1517, 1850, 2035, 2050, 2255, 2750, 3034, 4070, 4510, 4625, 5125, 6875, 7585, 9250, 10175, 10250, 11275, 13750, 15170, 16687, 20350, 22550, 23125, 25625, 33374, 37925, 46250, 50875, 51250, 56375, 75850, 83435, 101750, 112750, 166870, 189625, 254375, 281875, 379250, 417175, 508750, 563750, 834350, 948125, 1896250, 2085875, 4171750, 10429375, 20858750]

約数ペア:

[(1, 20858750), (2, 10429375), (5, 4171750), (10, 2085875), (11, 1896250), (22, 948125), (25, 834350), (37, 563750), (41, 508750), (50, 417175), (55, 379250), (74, 281875), (82, 254375), (110, 189625), (125, 166870), (185, 112750), (205, 101750), (250, 83435), (275, 75850), (370, 56375), (407, 51250), (410, 50875), (451, 46250), (550, 37925), (625, 33374), (814, 25625), (902, 23125), (925, 22550), (1025, 20350), (1250, 16687), (1375, 15170), (1517, 13750), (1850, 11275), (2035, 10250), (2050, 10175), (2255, 9250), (2750, 7585), (3034, 6875), (4070, 5125), (4510, 4625)]