1290959080

素因数分解:

$2^3\times 5^1\times {\mathrm{487}}^1\times {\mathrm{66271}}^1$

素因数の和:66769

約数の個数: 32

約数和(自身を含む): 2910666240

約数和(自身を除く): 1619707160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 487, 974, 1948, 2435, 3896, 4870, 9740, 19480, 66271, 132542, 265084, 331355, 530168, 662710, 1325420, 2650840, 32273977, 64547954, 129095908, 161369885, 258191816, 322739770, 645479540, 1290959080]

約数ペア:

[(1, 1290959080), (2, 645479540), (4, 322739770), (5, 258191816), (8, 161369885), (10, 129095908), (20, 64547954), (40, 32273977), (487, 2650840), (974, 1325420), (1948, 662710), (2435, 530168), (3896, 331355), (4870, 265084), (9740, 132542), (19480, 66271)]