2809190

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1$

素因数の和:236

約数の個数: 32

約数和(自身を含む): 5322240

約数和(自身を除く): 2513050

約数列:

[1, 2, 5, 10, 43, 47, 86, 94, 139, 215, 235, 278, 430, 470, 695, 1390, 2021, 4042, 5977, 6533, 10105, 11954, 13066, 20210, 29885, 32665, 59770, 65330, 280919, 561838, 1404595, 2809190]

約数ペア:

[(1, 2809190), (2, 1404595), (5, 561838), (10, 280919), (43, 65330), (47, 59770), (86, 32665), (94, 29885), (139, 20210), (215, 13066), (235, 11954), (278, 10105), (430, 6533), (470, 5977), (695, 4042), (1390, 2021)]