12719455

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{617}}^1$

素因数の和:679

約数の個数: 32

約数和(自身を含む): 18984960

約数和(自身を除く): 6265505

約数列:

[1, 5, 7, 19, 31, 35, 95, 133, 155, 217, 589, 617, 665, 1085, 2945, 3085, 4123, 4319, 11723, 19127, 20615, 21595, 58615, 82061, 95635, 133889, 363413, 410305, 669445, 1817065, 2543891, 12719455]

約数ペア:

[(1, 12719455), (5, 2543891), (7, 1817065), (19, 669445), (31, 410305), (35, 363413), (95, 133889), (133, 95635), (155, 82061), (217, 58615), (589, 21595), (617, 20615), (665, 19127), (1085, 11723), (2945, 4319), (3085, 4123)]