138869220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{330641}}^1$

素因数の和:330660

約数の個数: 48

約数和(自身を含む): 444382848

約数和(自身を除く): 305513628

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 330641, 661282, 991923, 1322564, 1653205, 1983846, 2314487, 3306410, 3967692, 4628974, 4959615, 6612820, 6943461, 9257948, 9919230, 11572435, 13886922, 19838460, 23144870, 27773844, 34717305, 46289740, 69434610, 138869220]

約数ペア:

[(1, 138869220), (2, 69434610), (3, 46289740), (4, 34717305), (5, 27773844), (6, 23144870), (7, 19838460), (10, 13886922), (12, 11572435), (14, 9919230), (15, 9257948), (20, 6943461), (21, 6612820), (28, 4959615), (30, 4628974), (35, 3967692), (42, 3306410), (60, 2314487), (70, 1983846), (84, 1653205), (105, 1322564), (140, 991923), (210, 661282), (420, 330641)]