20495460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{11779}}^1$

素因数の和:11820

約数の個数: 48

約数和(自身を含む): 59371200

約数和(自身を除く): 38875740

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, 11779, 23558, 35337, 47116, 58895, 70674, 117790, 141348, 176685, 235580, 341591, 353370, 683182, 706740, 1024773, 1366364, 1707955, 2049546, 3415910, 4099092, 5123865, 6831820, 10247730, 20495460]

約数ペア:

[(1, 20495460), (2, 10247730), (3, 6831820), (4, 5123865), (5, 4099092), (6, 3415910), (10, 2049546), (12, 1707955), (15, 1366364), (20, 1024773), (29, 706740), (30, 683182), (58, 353370), (60, 341591), (87, 235580), (116, 176685), (145, 141348), (174, 117790), (290, 70674), (348, 58895), (435, 47116), (580, 35337), (870, 23558), (1740, 11779)]