1388430040

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{273313}}^1$

素因数の和:273451

約数の個数: 32

約数和(自身を含む): 3148577280

約数和(自身を除く): 1760147240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 5080, 273313, 546626, 1093252, 1366565, 2186504, 2733130, 5466260, 10932520, 34710751, 69421502, 138843004, 173553755, 277686008, 347107510, 694215020, 1388430040]

約数ペア:

[(1, 1388430040), (2, 694215020), (4, 347107510), (5, 277686008), (8, 173553755), (10, 138843004), (20, 69421502), (40, 34710751), (127, 10932520), (254, 5466260), (508, 2733130), (635, 2186504), (1016, 1366565), (1270, 1093252), (2540, 546626), (5080, 273313)]