1397776

素因数分解:

$2^4\times {\mathrm{199}}^1\times {\mathrm{439}}^1$

素因数の和:646

約数の個数: 20

約数和(自身を含む): 2728000

約数和(自身を除く): 1330224

約数列:

[1, 2, 4, 8, 16, 199, 398, 439, 796, 878, 1592, 1756, 3184, 3512, 7024, 87361, 174722, 349444, 698888, 1397776]

約数ペア:

[(1, 1397776), (2, 698888), (4, 349444), (8, 174722), (16, 87361), (199, 7024), (398, 3512), (439, 3184), (796, 1756), (878, 1592)]