9779540

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^2\times {\mathrm{97}}^1$

素因数の和:248

約数の個数: 36

約数和(自身を含む): 21045108

約数和(自身を除く): 11265568

約数列:

[1, 2, 4, 5, 10, 20, 71, 97, 142, 194, 284, 355, 388, 485, 710, 970, 1420, 1940, 5041, 6887, 10082, 13774, 20164, 25205, 27548, 34435, 50410, 68870, 100820, 137740, 488977, 977954, 1955908, 2444885, 4889770, 9779540]

約数ペア:

[(1, 9779540), (2, 4889770), (4, 2444885), (5, 1955908), (10, 977954), (20, 488977), (71, 137740), (97, 100820), (142, 68870), (194, 50410), (284, 34435), (355, 27548), (388, 25205), (485, 20164), (710, 13774), (970, 10082), (1420, 6887), (1940, 5041)]