16910780

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{11909}}^1$

素因数の和:11989

約数の個数: 24

約数和(自身を含む): 36015840

約数和(自身を除く): 19105060

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 11909, 23818, 47636, 59545, 119090, 238180, 845539, 1691078, 3382156, 4227695, 8455390, 16910780]

約数ペア:

[(1, 16910780), (2, 8455390), (4, 4227695), (5, 3382156), (10, 1691078), (20, 845539), (71, 238180), (142, 119090), (284, 59545), (355, 47636), (710, 23818), (1420, 11909)]