20960500

素因数分解:

$2^2\times 5^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1$

素因数の和:170

約数の個数: 96

約数和(自身を含む): 51787008

約数和(自身を除く): 30826508

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 37, 44, 50, 55, 74, 100, 103, 110, 125, 148, 185, 206, 220, 250, 275, 370, 407, 412, 500, 515, 550, 740, 814, 925, 1030, 1100, 1133, 1375, 1628, 1850, 2035, 2060, 2266, 2575, 2750, 3700, 3811, 4070, 4532, 4625, 5150, 5500, 5665, 7622, 8140, 9250, 10175, 10300, 11330, 12875, 15244, 18500, 19055, 20350, 22660, 25750, 28325, 38110, 40700, 41921, 50875, 51500, 56650, 76220, 83842, 95275, 101750, 113300, 141625, 167684, 190550, 203500, 209605, 283250, 381100, 419210, 476375, 566500, 838420, 952750, 1048025, 1905500, 2096050, 4192100, 5240125, 10480250, 20960500]

約数ペア:

[(1, 20960500), (2, 10480250), (4, 5240125), (5, 4192100), (10, 2096050), (11, 1905500), (20, 1048025), (22, 952750), (25, 838420), (37, 566500), (44, 476375), (50, 419210), (55, 381100), (74, 283250), (100, 209605), (103, 203500), (110, 190550), (125, 167684), (148, 141625), (185, 113300), (206, 101750), (220, 95275), (250, 83842), (275, 76220), (370, 56650), (407, 51500), (412, 50875), (500, 41921), (515, 40700), (550, 38110), (740, 28325), (814, 25750), (925, 22660), (1030, 20350), (1100, 19055), (1133, 18500), (1375, 15244), (1628, 12875), (1850, 11330), (2035, 10300), (2060, 10175), (2266, 9250), (2575, 8140), (2750, 7622), (3700, 5665), (3811, 5500), (4070, 5150), (4532, 4625)]