15837680

素因数分解:

$2^4\times 5^1\times {\mathrm{197971}}^1$

素因数の和:197984

約数の個数: 20

約数和(自身を含む): 36822792

約数和(自身を除く): 20985112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197971, 395942, 791884, 989855, 1583768, 1979710, 3167536, 3959420, 7918840, 15837680]

約数ペア:

[(1, 15837680), (2, 7918840), (4, 3959420), (5, 3167536), (8, 1979710), (10, 1583768), (16, 989855), (20, 791884), (40, 395942), (80, 197971)]