40309540

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{28387}}^1$

素因数の和:28467

約数の個数: 24

約数和(自身を含む): 85845312

約数和(自身を除く): 45535772

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 28387, 56774, 113548, 141935, 283870, 567740, 2015477, 4030954, 8061908, 10077385, 20154770, 40309540]

約数ペア:

[(1, 40309540), (2, 20154770), (4, 10077385), (5, 8061908), (10, 4030954), (20, 2015477), (71, 567740), (142, 283870), (284, 141935), (355, 113548), (710, 56774), (1420, 28387)]