18479140

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{4643}}^1$

素因数の和:4851

約数の個数: 24

約数和(自身を含む): 39009600

約数和(自身を除く): 20530460

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 4643, 9286, 18572, 23215, 46430, 92860, 923957, 1847914, 3695828, 4619785, 9239570, 18479140]

約数ペア:

[(1, 18479140), (2, 9239570), (4, 4619785), (5, 3695828), (10, 1847914), (20, 923957), (199, 92860), (398, 46430), (796, 23215), (995, 18572), (1990, 9286), (3980, 4643)]