51507940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{911}}^1$

素因数の和:1188

約数の個数: 48

約数和(自身を含む): 118589184

約数和(自身を除く): 67081244

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 257, 514, 911, 1028, 1285, 1822, 2570, 2827, 3644, 4555, 5140, 5654, 9110, 10021, 11308, 14135, 18220, 20042, 28270, 40084, 50105, 56540, 100210, 200420, 234127, 468254, 936508, 1170635, 2341270, 2575397, 4682540, 5150794, 10301588, 12876985, 25753970, 51507940]

約数ペア:

[(1, 51507940), (2, 25753970), (4, 12876985), (5, 10301588), (10, 5150794), (11, 4682540), (20, 2575397), (22, 2341270), (44, 1170635), (55, 936508), (110, 468254), (220, 234127), (257, 200420), (514, 100210), (911, 56540), (1028, 50105), (1285, 40084), (1822, 28270), (2570, 20042), (2827, 18220), (3644, 14135), (4555, 11308), (5140, 10021), (5654, 9110)]