20349740

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{5113}}^1$

素因数の和:5321

約数の個数: 24

約数和(自身を含む): 42957600

約数和(自身を除く): 22607860

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 5113, 10226, 20452, 25565, 51130, 102260, 1017487, 2034974, 4069948, 5087435, 10174870, 20349740]

約数ペア:

[(1, 20349740), (2, 10174870), (4, 5087435), (5, 4069948), (10, 2034974), (20, 1017487), (199, 102260), (398, 51130), (796, 25565), (995, 20452), (1990, 10226), (3980, 5113)]