7720220

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{191}}^1$

素因数の和:290

約数の個数: 48

約数和(自身を含む): 17031168

約数和(自身を除く): 9310948

約数列:

[1, 2, 4, 5, 10, 20, 43, 47, 86, 94, 172, 188, 191, 215, 235, 382, 430, 470, 764, 860, 940, 955, 1910, 2021, 3820, 4042, 8084, 8213, 8977, 10105, 16426, 17954, 20210, 32852, 35908, 40420, 41065, 44885, 82130, 89770, 164260, 179540, 386011, 772022, 1544044, 1930055, 3860110, 7720220]

約数ペア:

[(1, 7720220), (2, 3860110), (4, 1930055), (5, 1544044), (10, 772022), (20, 386011), (43, 179540), (47, 164260), (86, 89770), (94, 82130), (172, 44885), (188, 41065), (191, 40420), (215, 35908), (235, 32852), (382, 20210), (430, 17954), (470, 16426), (764, 10105), (860, 8977), (940, 8213), (955, 8084), (1910, 4042), (2021, 3820)]