8158540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31379}}^1$

素因数の和:31401

約数の個数: 24

約数和(自身を含む): 18451440

約数和(自身を除く): 10292900

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 31379, 62758, 125516, 156895, 313790, 407927, 627580, 815854, 1631708, 2039635, 4079270, 8158540]

約数ペア:

[(1, 8158540), (2, 4079270), (4, 2039635), (5, 1631708), (10, 815854), (13, 627580), (20, 407927), (26, 313790), (52, 156895), (65, 125516), (130, 62758), (260, 31379)]