18386420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{70717}}^1$

素因数の和:70739

約数の個数: 24

約数和(自身を含む): 41582184

約数和(自身を除く): 23195764

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 70717, 141434, 282868, 353585, 707170, 919321, 1414340, 1838642, 3677284, 4596605, 9193210, 18386420]

約数ペア:

[(1, 18386420), (2, 9193210), (4, 4596605), (5, 3677284), (10, 1838642), (13, 1414340), (20, 919321), (26, 707170), (52, 353585), (65, 282868), (130, 141434), (260, 70717)]