8478640

素因数分解:

$2^4\times 5^1\times {\mathrm{105983}}^1$

素因数の和:105996

約数の個数: 20

約数和(自身を含む): 19713024

約数和(自身を除く): 11234384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 105983, 211966, 423932, 529915, 847864, 1059830, 1695728, 2119660, 4239320, 8478640]

約数ペア:

[(1, 8478640), (2, 4239320), (4, 2119660), (5, 1695728), (8, 1059830), (10, 847864), (16, 529915), (20, 423932), (40, 211966), (80, 105983)]