71820740

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{37021}}^1$

素因数の和:37127

約数の個数: 24

約数和(自身を含む): 152382552

約数和(自身を除く): 80561812

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 37021, 74042, 148084, 185105, 370210, 740420, 3591037, 7182074, 14364148, 17955185, 35910370, 71820740]

約数ペア:

[(1, 71820740), (2, 35910370), (4, 17955185), (5, 14364148), (10, 7182074), (20, 3591037), (97, 740420), (194, 370210), (388, 185105), (485, 148084), (970, 74042), (1940, 37021)]