28305040

素因数分解:

$2^4\times 5^1\times {\mathrm{353813}}^1$

素因数の和:353826

約数の個数: 20

約数和(自身を含む): 65809404

約数和(自身を除く): 37504364

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 353813, 707626, 1415252, 1769065, 2830504, 3538130, 5661008, 7076260, 14152520, 28305040]

約数ペア:

[(1, 28305040), (2, 14152520), (4, 7076260), (5, 5661008), (8, 3538130), (10, 2830504), (16, 1769065), (20, 1415252), (40, 707626), (80, 353813)]