826640

素因数分解:

$2^4\times 5^1\times {\mathrm{10333}}^1$

素因数の和:10346

約数の個数: 20

約数和(自身を含む): 1922124

約数和(自身を除く): 1095484

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 10333, 20666, 41332, 51665, 82664, 103330, 165328, 206660, 413320, 826640]

約数ペア:

[(1, 826640), (2, 413320), (4, 206660), (5, 165328), (8, 103330), (10, 82664), (16, 51665), (20, 41332), (40, 20666), (80, 10333)]