40805980

素因数分解:

$2^2\times 5^1\times {\mathrm{1087}}^1\times {\mathrm{1877}}^1$

素因数の和:2973

約数の個数: 24

約数和(自身を含む): 85817088

約数和(自身を除く): 45011108

約数列:

[1, 2, 4, 5, 10, 20, 1087, 1877, 2174, 3754, 4348, 5435, 7508, 9385, 10870, 18770, 21740, 37540, 2040299, 4080598, 8161196, 10201495, 20402990, 40805980]

約数ペア:

[(1, 40805980), (2, 20402990), (4, 10201495), (5, 8161196), (10, 4080598), (20, 2040299), (1087, 37540), (1877, 21740), (2174, 18770), (3754, 10870), (4348, 9385), (5435, 7508)]