20162975

素因数分解:

$5^2\times 7^1\times {\mathrm{29}}^2\times {\mathrm{137}}^1$

素因数の和:212

約数の個数: 36

約数和(自身を含む): 29809104

約数和(自身を除く): 9646129

約数列:

[1, 5, 7, 25, 29, 35, 137, 145, 175, 203, 685, 725, 841, 959, 1015, 3425, 3973, 4205, 4795, 5075, 5887, 19865, 21025, 23975, 27811, 29435, 99325, 115217, 139055, 147175, 576085, 695275, 806519, 2880425, 4032595, 20162975]

約数ペア:

[(1, 20162975), (5, 4032595), (7, 2880425), (25, 806519), (29, 695275), (35, 576085), (137, 147175), (145, 139055), (175, 115217), (203, 99325), (685, 29435), (725, 27811), (841, 23975), (959, 21025), (1015, 19865), (3425, 5887), (3973, 5075), (4205, 4795)]