5278640

素因数分解:

$2^4\times 5^1\times {\mathrm{65983}}^1$

素因数の和:65996

約数の個数: 20

約数和(自身を含む): 12273024

約数和(自身を除く): 6994384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 65983, 131966, 263932, 329915, 527864, 659830, 1055728, 1319660, 2639320, 5278640]

約数ペア:

[(1, 5278640), (2, 2639320), (4, 1319660), (5, 1055728), (8, 659830), (10, 527864), (16, 329915), (20, 263932), (40, 131966), (80, 65983)]