12939740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{5347}}^1$

素因数の和:5378

約数の個数: 36

約数和(自身を含む): 29873928

約数和(自身を除く): 16934188

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 5347, 10694, 21388, 26735, 53470, 58817, 106940, 117634, 235268, 294085, 588170, 646987, 1176340, 1293974, 2587948, 3234935, 6469870, 12939740]

約数ペア:

[(1, 12939740), (2, 6469870), (4, 3234935), (5, 2587948), (10, 1293974), (11, 1176340), (20, 646987), (22, 588170), (44, 294085), (55, 235268), (110, 117634), (121, 106940), (220, 58817), (242, 53470), (484, 26735), (605, 21388), (1210, 10694), (2420, 5347)]