12216820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{7933}}^1$

素因数の和:7960

約数の個数: 48

約数和(自身を含む): 31989888

約数和(自身を除く): 19773068

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 7933, 15866, 31732, 39665, 55531, 79330, 87263, 111062, 158660, 174526, 222124, 277655, 349052, 436315, 555310, 610841, 872630, 1110620, 1221682, 1745260, 2443364, 3054205, 6108410, 12216820]

約数ペア:

[(1, 12216820), (2, 6108410), (4, 3054205), (5, 2443364), (7, 1745260), (10, 1221682), (11, 1110620), (14, 872630), (20, 610841), (22, 555310), (28, 436315), (35, 349052), (44, 277655), (55, 222124), (70, 174526), (77, 158660), (110, 111062), (140, 87263), (154, 79330), (220, 55531), (308, 39665), (385, 31732), (770, 15866), (1540, 7933)]