20585775

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{113}}^1\times {\mathrm{347}}^1$

素因数の和:480

約数の個数: 48

約数和(自身を含む): 39354624

約数和(自身を除く): 18768849

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 113, 175, 339, 347, 525, 565, 791, 1041, 1695, 1735, 2373, 2429, 2825, 3955, 5205, 7287, 8475, 8675, 11865, 12145, 19775, 26025, 36435, 39211, 59325, 60725, 117633, 182175, 196055, 274477, 588165, 823431, 980275, 1372385, 2940825, 4117155, 6861925, 20585775]

約数ペア:

[(1, 20585775), (3, 6861925), (5, 4117155), (7, 2940825), (15, 1372385), (21, 980275), (25, 823431), (35, 588165), (75, 274477), (105, 196055), (113, 182175), (175, 117633), (339, 60725), (347, 59325), (525, 39211), (565, 36435), (791, 26025), (1041, 19775), (1695, 12145), (1735, 11865), (2373, 8675), (2429, 8475), (2825, 7287), (3955, 5205)]