20485465

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{4093}}^1$

素因数の和:4129

約数の個数: 32

約数和(自身を含む): 33014016

約数和(自身を除く): 12528551

約数列:

[1, 5, 7, 11, 13, 35, 55, 65, 77, 91, 143, 385, 455, 715, 1001, 4093, 5005, 20465, 28651, 45023, 53209, 143255, 225115, 266045, 315161, 372463, 585299, 1575805, 1862315, 2926495, 4097093, 20485465]

約数ペア:

[(1, 20485465), (5, 4097093), (7, 2926495), (11, 1862315), (13, 1575805), (35, 585299), (55, 372463), (65, 315161), (77, 266045), (91, 225115), (143, 143255), (385, 53209), (455, 45023), (715, 28651), (1001, 20465), (4093, 5005)]