90339140

素因数分解:

$2^2\times 5^1\times {\mathrm{1109}}^1\times {\mathrm{4073}}^1$

素因数の和:5191

約数の個数: 24

約数和(自身を含む): 189929880

約数和(自身を除く): 99590740

約数列:

[1, 2, 4, 5, 10, 20, 1109, 2218, 4073, 4436, 5545, 8146, 11090, 16292, 20365, 22180, 40730, 81460, 4516957, 9033914, 18067828, 22584785, 45169570, 90339140]

約数ペア:

[(1, 90339140), (2, 45169570), (4, 22584785), (5, 18067828), (10, 9033914), (20, 4516957), (1109, 81460), (2218, 40730), (4073, 22180), (4436, 20365), (5545, 16292), (8146, 11090)]