206580020

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{547}}^1\times {\mathrm{821}}^1$

素因数の和:1400

約数の個数: 48

約数和(自身を含む): 454059648

約数和(自身を除く): 247479628

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 547, 821, 1094, 1642, 2188, 2735, 3284, 4105, 5470, 8210, 10940, 12581, 16420, 18883, 25162, 37766, 50324, 62905, 75532, 94415, 125810, 188830, 251620, 377660, 449087, 898174, 1796348, 2245435, 4490870, 8981740, 10329001, 20658002, 41316004, 51645005, 103290010, 206580020]

約数ペア:

[(1, 206580020), (2, 103290010), (4, 51645005), (5, 41316004), (10, 20658002), (20, 10329001), (23, 8981740), (46, 4490870), (92, 2245435), (115, 1796348), (230, 898174), (460, 449087), (547, 377660), (821, 251620), (1094, 188830), (1642, 125810), (2188, 94415), (2735, 75532), (3284, 62905), (4105, 50324), (5470, 37766), (8210, 25162), (10940, 18883), (12581, 16420)]