20802425

素因数分解:

$5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{4099}}^1$

素因数の和:4145

約数の個数: 24

約数和(自身を含む): 30504000

約数和(自身を除く): 9701575

約数列:

[1, 5, 7, 25, 29, 35, 145, 175, 203, 725, 1015, 4099, 5075, 20495, 28693, 102475, 118871, 143465, 594355, 717325, 832097, 2971775, 4160485, 20802425]

約数ペア:

[(1, 20802425), (5, 4160485), (7, 2971775), (25, 832097), (29, 717325), (35, 594355), (145, 143465), (175, 118871), (203, 102475), (725, 28693), (1015, 20495), (4099, 5075)]