20648580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{11867}}^1$

素因数の和:11908

約数の個数: 48

約数和(自身を含む): 59814720

約数和(自身を除く): 39166140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 58, 60, 87, 116, 145, 174, 290, 348, 435, 580, 870, 1740, 11867, 23734, 35601, 47468, 59335, 71202, 118670, 142404, 178005, 237340, 344143, 356010, 688286, 712020, 1032429, 1376572, 1720715, 2064858, 3441430, 4129716, 5162145, 6882860, 10324290, 20648580]

約数ペア:

[(1, 20648580), (2, 10324290), (3, 6882860), (4, 5162145), (5, 4129716), (6, 3441430), (10, 2064858), (12, 1720715), (15, 1376572), (20, 1032429), (29, 712020), (30, 688286), (58, 356010), (60, 344143), (87, 237340), (116, 178005), (145, 142404), (174, 118670), (290, 71202), (348, 59335), (435, 47468), (580, 35601), (870, 23734), (1740, 11867)]