19618910

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{439}}^1$

素因数の和:596

約数の個数: 32

約数和(自身を含む): 36590400

約数和(自身を除く): 16971490

約数列:

[1, 2, 5, 10, 41, 82, 109, 205, 218, 410, 439, 545, 878, 1090, 2195, 4390, 4469, 8938, 17999, 22345, 35998, 44690, 47851, 89995, 95702, 179990, 239255, 478510, 1961891, 3923782, 9809455, 19618910]

約数ペア:

[(1, 19618910), (2, 9809455), (5, 3923782), (10, 1961891), (41, 478510), (82, 239255), (109, 179990), (205, 95702), (218, 89995), (410, 47851), (439, 44690), (545, 35998), (878, 22345), (1090, 17999), (2195, 8938), (4390, 4469)]