80941480

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47059}}^1$

素因数の和:47113

約数の個数: 32

約数和(自身を含む): 186357600

約数和(自身を除く): 105416120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 47059, 94118, 188236, 235295, 376472, 470590, 941180, 1882360, 2023537, 4047074, 8094148, 10117685, 16188296, 20235370, 40470740, 80941480]

約数ペア:

[(1, 80941480), (2, 40470740), (4, 20235370), (5, 16188296), (8, 10117685), (10, 8094148), (20, 4047074), (40, 2023537), (43, 1882360), (86, 941180), (172, 470590), (215, 376472), (344, 235295), (430, 188236), (860, 94118), (1720, 47059)]