20052725

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{947}}^1$

素因数の和:986

約数の個数: 36

約数和(自身を含む): 31268832

約数和(自身を除く): 11216107

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 121, 175, 275, 385, 605, 847, 947, 1925, 3025, 4235, 4735, 6629, 10417, 21175, 23675, 33145, 52085, 72919, 114587, 165725, 260425, 364595, 572935, 802109, 1822975, 2864675, 4010545, 20052725]

約数ペア:

[(1, 20052725), (5, 4010545), (7, 2864675), (11, 1822975), (25, 802109), (35, 572935), (55, 364595), (77, 260425), (121, 165725), (175, 114587), (275, 72919), (385, 52085), (605, 33145), (847, 23675), (947, 21175), (1925, 10417), (3025, 6629), (4235, 4735)]