20057125

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{503}}^1$

素因数の和:558

約数の個数: 32

約数和(自身を含む): 28304640

約数和(自身を除く): 8247515

約数列:

[1, 5, 11, 25, 29, 55, 125, 145, 275, 319, 503, 725, 1375, 1595, 2515, 3625, 5533, 7975, 12575, 14587, 27665, 39875, 62875, 72935, 138325, 160457, 364675, 691625, 802285, 1823375, 4011425, 20057125]

約数ペア:

[(1, 20057125), (5, 4011425), (11, 1823375), (25, 802285), (29, 691625), (55, 364675), (125, 160457), (145, 138325), (275, 72935), (319, 62875), (503, 39875), (725, 27665), (1375, 14587), (1595, 12575), (2515, 7975), (3625, 5533)]