28803278

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{499}}^1$

素因数の和:565

約数の個数: 48

約数和(自身を含む): 54720000

約数和(自身を除く): 25916722

約数列:

[1, 2, 7, 14, 19, 31, 38, 49, 62, 98, 133, 217, 266, 434, 499, 589, 931, 998, 1178, 1519, 1862, 3038, 3493, 4123, 6986, 8246, 9481, 15469, 18962, 24451, 28861, 30938, 48902, 57722, 66367, 108283, 132734, 216566, 293911, 464569, 587822, 757981, 929138, 1515962, 2057377, 4114754, 14401639, 28803278]

約数ペア:

[(1, 28803278), (2, 14401639), (7, 4114754), (14, 2057377), (19, 1515962), (31, 929138), (38, 757981), (49, 587822), (62, 464569), (98, 293911), (133, 216566), (217, 132734), (266, 108283), (434, 66367), (499, 57722), (589, 48902), (931, 30938), (998, 28861), (1178, 24451), (1519, 18962), (1862, 15469), (3038, 9481), (3493, 8246), (4123, 6986)]