1489749820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{28793}}^1$

素因数の和:29014

約数の個数: 48

約数和(自身を含む): 3386174400

約数和(自身を除く): 1896424580

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 199, 260, 398, 796, 995, 1990, 2587, 3980, 5174, 10348, 12935, 25870, 28793, 51740, 57586, 115172, 143965, 287930, 374309, 575860, 748618, 1497236, 1871545, 3743090, 5729807, 7486180, 11459614, 22919228, 28649035, 57298070, 74487491, 114596140, 148974982, 297949964, 372437455, 744874910, 1489749820]

約数ペア:

[(1, 1489749820), (2, 744874910), (4, 372437455), (5, 297949964), (10, 148974982), (13, 114596140), (20, 74487491), (26, 57298070), (52, 28649035), (65, 22919228), (130, 11459614), (199, 7486180), (260, 5729807), (398, 3743090), (796, 1871545), (995, 1497236), (1990, 748618), (2587, 575860), (3980, 374309), (5174, 287930), (10348, 143965), (12935, 115172), (25870, 57586), (28793, 51740)]