81799620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{27823}}^1$

素因数の和:27849

約数の個数: 72

約数和(自身を含む): 266442624

約数和(自身を除く): 184643004

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 27823, 55646, 83469, 111292, 139115, 166938, 194761, 278230, 333876, 389522, 417345, 556460, 584283, 779044, 834690, 973805, 1168566, 1363327, 1669380, 1947610, 2337132, 2726654, 2921415, 3895220, 4089981, 5453308, 5842830, 6816635, 8179962, 11685660, 13633270, 16359924, 20449905, 27266540, 40899810, 81799620]

約数ペア:

[(1, 81799620), (2, 40899810), (3, 27266540), (4, 20449905), (5, 16359924), (6, 13633270), (7, 11685660), (10, 8179962), (12, 6816635), (14, 5842830), (15, 5453308), (20, 4089981), (21, 3895220), (28, 2921415), (30, 2726654), (35, 2337132), (42, 1947610), (49, 1669380), (60, 1363327), (70, 1168566), (84, 973805), (98, 834690), (105, 779044), (140, 584283), (147, 556460), (196, 417345), (210, 389522), (245, 333876), (294, 278230), (420, 194761), (490, 166938), (588, 139115), (735, 111292), (980, 83469), (1470, 55646), (2940, 27823)]