201538640

素因数分解:

$2^4\times 5^1\times {\mathrm{1249}}^1\times {\mathrm{2017}}^1$

素因数の和:3279

約数の個数: 40

約数和(自身を含む): 469185000

約数和(自身を除く): 267646360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1249, 2017, 2498, 4034, 4996, 6245, 8068, 9992, 10085, 12490, 16136, 19984, 20170, 24980, 32272, 40340, 49960, 80680, 99920, 161360, 2519233, 5038466, 10076932, 12596165, 20153864, 25192330, 40307728, 50384660, 100769320, 201538640]

約数ペア:

[(1, 201538640), (2, 100769320), (4, 50384660), (5, 40307728), (8, 25192330), (10, 20153864), (16, 12596165), (20, 10076932), (40, 5038466), (80, 2519233), (1249, 161360), (2017, 99920), (2498, 80680), (4034, 49960), (4996, 40340), (6245, 32272), (8068, 24980), (9992, 20170), (10085, 19984), (12490, 16136)]