20766060

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{16481}}^1$

素因数の和:16503

約数の個数: 72

約数和(自身を含む): 71993376

約数和(自身を除く): 51227316

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 16481, 32962, 49443, 65924, 82405, 98886, 115367, 148329, 164810, 197772, 230734, 247215, 296658, 329620, 346101, 461468, 494430, 576835, 593316, 692202, 741645, 988860, 1038303, 1153670, 1384404, 1483290, 1730505, 2076606, 2307340, 2966580, 3461010, 4153212, 5191515, 6922020, 10383030, 20766060]

約数ペア:

[(1, 20766060), (2, 10383030), (3, 6922020), (4, 5191515), (5, 4153212), (6, 3461010), (7, 2966580), (9, 2307340), (10, 2076606), (12, 1730505), (14, 1483290), (15, 1384404), (18, 1153670), (20, 1038303), (21, 988860), (28, 741645), (30, 692202), (35, 593316), (36, 576835), (42, 494430), (45, 461468), (60, 346101), (63, 329620), (70, 296658), (84, 247215), (90, 230734), (105, 197772), (126, 164810), (140, 148329), (180, 115367), (210, 98886), (252, 82405), (315, 65924), (420, 49443), (630, 32962), (1260, 16481)]