28373040

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{251}}^1$

素因数の和:427

約数の個数: 120

約数和(自身を含む): 96275088

約数和(自身を除く): 67902048

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 157, 180, 240, 251, 314, 360, 471, 502, 628, 720, 753, 785, 942, 1004, 1255, 1256, 1413, 1506, 1570, 1884, 2008, 2259, 2355, 2510, 2512, 2826, 3012, 3140, 3765, 3768, 4016, 4518, 4710, 5020, 5652, 6024, 6280, 7065, 7530, 7536, 9036, 9420, 10040, 11295, 11304, 12048, 12560, 14130, 15060, 18072, 18840, 20080, 22590, 22608, 28260, 30120, 36144, 37680, 39407, 45180, 56520, 60240, 78814, 90360, 113040, 118221, 157628, 180720, 197035, 236442, 315256, 354663, 394070, 472884, 591105, 630512, 709326, 788140, 945768, 1182210, 1418652, 1576280, 1773315, 1891536, 2364420, 2837304, 3152560, 3546630, 4728840, 5674608, 7093260, 9457680, 14186520, 28373040]

約数ペア:

[(1, 28373040), (2, 14186520), (3, 9457680), (4, 7093260), (5, 5674608), (6, 4728840), (8, 3546630), (9, 3152560), (10, 2837304), (12, 2364420), (15, 1891536), (16, 1773315), (18, 1576280), (20, 1418652), (24, 1182210), (30, 945768), (36, 788140), (40, 709326), (45, 630512), (48, 591105), (60, 472884), (72, 394070), (80, 354663), (90, 315256), (120, 236442), (144, 197035), (157, 180720), (180, 157628), (240, 118221), (251, 113040), (314, 90360), (360, 78814), (471, 60240), (502, 56520), (628, 45180), (720, 39407), (753, 37680), (785, 36144), (942, 30120), (1004, 28260), (1255, 22608), (1256, 22590), (1413, 20080), (1506, 18840), (1570, 18072), (1884, 15060), (2008, 14130), (2259, 12560), (2355, 12048), (2510, 11304), (2512, 11295), (2826, 10040), (3012, 9420), (3140, 9036), (3765, 7536), (3768, 7530), (4016, 7065), (4518, 6280), (4710, 6024), (5020, 5652)]