12712120

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1597}}^1$

素因数の和:1807

約数の個数: 32

約数和(自身を含む): 28764000

約数和(自身を除く): 16051880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1597, 1990, 3194, 3980, 6388, 7960, 7985, 12776, 15970, 31940, 63880, 317803, 635606, 1271212, 1589015, 2542424, 3178030, 6356060, 12712120]

約数ペア:

[(1, 12712120), (2, 6356060), (4, 3178030), (5, 2542424), (8, 1589015), (10, 1271212), (20, 635606), (40, 317803), (199, 63880), (398, 31940), (796, 15970), (995, 12776), (1592, 7985), (1597, 7960), (1990, 6388), (3194, 3980)]