81652420

素因数分解:

$2^2\times 5^1\times {\mathrm{769}}^1\times {\mathrm{5309}}^1$

素因数の和:6087

約数の個数: 24

約数和(自身を含む): 171725400

約数和(自身を除く): 90072980

約数列:

[1, 2, 4, 5, 10, 20, 769, 1538, 3076, 3845, 5309, 7690, 10618, 15380, 21236, 26545, 53090, 106180, 4082621, 8165242, 16330484, 20413105, 40826210, 81652420]

約数ペア:

[(1, 81652420), (2, 40826210), (4, 20413105), (5, 16330484), (10, 8165242), (20, 4082621), (769, 106180), (1538, 53090), (3076, 26545), (3845, 21236), (5309, 15380), (7690, 10618)]