218639740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{167}}^1\times {\mathrm{541}}^1$

素因数の和:739

約数の個数: 72

約数和(自身を含む): 508638816

約数和(自身を除く): 289999076

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 167, 220, 242, 334, 484, 541, 605, 668, 835, 1082, 1210, 1670, 1837, 2164, 2420, 2705, 3340, 3674, 5410, 5951, 7348, 9185, 10820, 11902, 18370, 20207, 23804, 29755, 36740, 40414, 59510, 65461, 80828, 90347, 101035, 119020, 130922, 180694, 202070, 261844, 327305, 361388, 404140, 451735, 654610, 903470, 993817, 1309220, 1806940, 1987634, 3975268, 4969085, 9938170, 10931987, 19876340, 21863974, 43727948, 54659935, 109319870, 218639740]

約数ペア:

[(1, 218639740), (2, 109319870), (4, 54659935), (5, 43727948), (10, 21863974), (11, 19876340), (20, 10931987), (22, 9938170), (44, 4969085), (55, 3975268), (110, 1987634), (121, 1806940), (167, 1309220), (220, 993817), (242, 903470), (334, 654610), (484, 451735), (541, 404140), (605, 361388), (668, 327305), (835, 261844), (1082, 202070), (1210, 180694), (1670, 130922), (1837, 119020), (2164, 101035), (2420, 90347), (2705, 80828), (3340, 65461), (3674, 59510), (5410, 40414), (5951, 36740), (7348, 29755), (9185, 23804), (10820, 20207), (11902, 18370)]