20538780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{3529}}^1$

素因数の和:3638

約数の個数: 48

約数和(自身を含む): 58117920

約数和(自身を除く): 37579140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 97, 194, 291, 388, 485, 582, 970, 1164, 1455, 1940, 2910, 3529, 5820, 7058, 10587, 14116, 17645, 21174, 35290, 42348, 52935, 70580, 105870, 211740, 342313, 684626, 1026939, 1369252, 1711565, 2053878, 3423130, 4107756, 5134695, 6846260, 10269390, 20538780]

約数ペア:

[(1, 20538780), (2, 10269390), (3, 6846260), (4, 5134695), (5, 4107756), (6, 3423130), (10, 2053878), (12, 1711565), (15, 1369252), (20, 1026939), (30, 684626), (60, 342313), (97, 211740), (194, 105870), (291, 70580), (388, 52935), (485, 42348), (582, 35290), (970, 21174), (1164, 17645), (1455, 14116), (1940, 10587), (2910, 7058), (3529, 5820)]