18435340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{11971}}^1$

素因数の和:11998

約数の個数: 48

約数和(自身を含む): 48271104

約数和(自身を除く): 29835764

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, 11971, 23942, 47884, 59855, 83797, 119710, 131681, 167594, 239420, 263362, 335188, 418985, 526724, 658405, 837970, 921767, 1316810, 1675940, 1843534, 2633620, 3687068, 4608835, 9217670, 18435340]

約数ペア:

[(1, 18435340), (2, 9217670), (4, 4608835), (5, 3687068), (7, 2633620), (10, 1843534), (11, 1675940), (14, 1316810), (20, 921767), (22, 837970), (28, 658405), (35, 526724), (44, 418985), (55, 335188), (70, 263362), (77, 239420), (110, 167594), (140, 131681), (154, 119710), (220, 83797), (308, 59855), (385, 47884), (770, 23942), (1540, 11971)]