213565660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{138679}}^1$

素因数の和:138706

約数の個数: 48

約数和(自身を含む): 559157760

約数和(自身を除く): 345592100

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, 138679, 277358, 554716, 693395, 970753, 1386790, 1525469, 1941506, 2773580, 3050938, 3883012, 4853765, 6101876, 7627345, 9707530, 10678283, 15254690, 19415060, 21356566, 30509380, 42713132, 53391415, 106782830, 213565660]

約数ペア:

[(1, 213565660), (2, 106782830), (4, 53391415), (5, 42713132), (7, 30509380), (10, 21356566), (11, 19415060), (14, 15254690), (20, 10678283), (22, 9707530), (28, 7627345), (35, 6101876), (44, 4853765), (55, 3883012), (70, 3050938), (77, 2773580), (110, 1941506), (140, 1525469), (154, 1386790), (220, 970753), (308, 693395), (385, 554716), (770, 277358), (1540, 138679)]