386977390

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{199}}^1\times {\mathrm{1399}}^1$

素因数の和:1744

約数の個数: 32

約数和(自身を含む): 705600000

約数和(自身を除く): 318622610

約数列:

[1, 2, 5, 10, 139, 199, 278, 398, 695, 995, 1390, 1399, 1990, 2798, 6995, 13990, 27661, 55322, 138305, 194461, 276610, 278401, 388922, 556802, 972305, 1392005, 1944610, 2784010, 38697739, 77395478, 193488695, 386977390]

約数ペア:

[(1, 386977390), (2, 193488695), (5, 77395478), (10, 38697739), (139, 2784010), (199, 1944610), (278, 1392005), (398, 972305), (695, 556802), (995, 388922), (1390, 278401), (1399, 276610), (1990, 194461), (2798, 138305), (6995, 55322), (13990, 27661)]