816880

素因数分解:

$2^4\times 5^1\times {\mathrm{10211}}^1$

素因数の和:10224

約数の個数: 20

約数和(自身を含む): 1899432

約数和(自身を除く): 1082552

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 10211, 20422, 40844, 51055, 81688, 102110, 163376, 204220, 408440, 816880]

約数ペア:

[(1, 816880), (2, 408440), (4, 204220), (5, 163376), (8, 102110), (10, 81688), (16, 51055), (20, 40844), (40, 20422), (80, 10211)]