20880147155

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{291439}}^1$

素因数の和:291563

約数の個数: 32

約数和(自身を含む): 30216499200

約数和(自身を除く): 9336352045

約数列:

[1, 5, 7, 23, 35, 89, 115, 161, 445, 623, 805, 2047, 3115, 10235, 14329, 71645, 291439, 1457195, 2040073, 6703097, 10200365, 25938071, 33515485, 46921679, 129690355, 181566497, 234608395, 596575633, 907832485, 2982878165, 4176029431, 20880147155]

約数ペア:

[(1, 20880147155), (5, 4176029431), (7, 2982878165), (23, 907832485), (35, 596575633), (89, 234608395), (115, 181566497), (161, 129690355), (445, 46921679), (623, 33515485), (805, 25938071), (2047, 10200365), (3115, 6703097), (10235, 2040073), (14329, 1457195), (71645, 291439)]