18865720270

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2579}}^1\times {\mathrm{10303}}^1$

素因数の和:12960

約数の個数: 32

約数和(自身を含む): 34453278720

約数和(自身を除く): 15587558450

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 2579, 5158, 10303, 12895, 20606, 25790, 51515, 103030, 183109, 366218, 731513, 915545, 1463026, 1831090, 3657565, 7315130, 26571437, 53142874, 132857185, 265714370, 1886572027, 3773144054, 9432860135, 18865720270]

約数ペア:

[(1, 18865720270), (2, 9432860135), (5, 3773144054), (10, 1886572027), (71, 265714370), (142, 132857185), (355, 53142874), (710, 26571437), (2579, 7315130), (5158, 3657565), (10303, 1831090), (12895, 1463026), (20606, 915545), (25790, 731513), (51515, 366218), (103030, 183109)]