12961737640

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1628359}}^1$

素因数の和:1628569

約数の個数: 32

約数和(自身を含む): 29310480000

約数和(自身を除く): 16348742360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 3980, 7960, 1628359, 3256718, 6513436, 8141795, 13026872, 16283590, 32567180, 65134360, 324043441, 648086882, 1296173764, 1620217205, 2592347528, 3240434410, 6480868820, 12961737640]

約数ペア:

[(1, 12961737640), (2, 6480868820), (4, 3240434410), (5, 2592347528), (8, 1620217205), (10, 1296173764), (20, 648086882), (40, 324043441), (199, 65134360), (398, 32567180), (796, 16283590), (995, 13026872), (1592, 8141795), (1990, 6513436), (3980, 3256718), (7960, 1628359)]