81624620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53003}}^1$

素因数の和:53030

約数の個数: 48

約数和(自身を含む): 213712128

約数和(自身を除く): 132087508

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, 53003, 106006, 212012, 265015, 371021, 530030, 583033, 742042, 1060060, 1166066, 1484084, 1855105, 2332132, 2915165, 3710210, 4081231, 5830330, 7420420, 8162462, 11660660, 16324924, 20406155, 40812310, 81624620]

約数ペア:

[(1, 81624620), (2, 40812310), (4, 20406155), (5, 16324924), (7, 11660660), (10, 8162462), (11, 7420420), (14, 5830330), (20, 4081231), (22, 3710210), (28, 2915165), (35, 2332132), (44, 1855105), (55, 1484084), (70, 1166066), (77, 1060060), (110, 742042), (140, 583033), (154, 530030), (220, 371021), (308, 265015), (385, 212012), (770, 106006), (1540, 53003)]