31578480

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{719}}^1$

素因数の和:799

約数の個数: 120

約数和(自身を含む): 107939520

約数和(自身を除く): 76361040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 61, 72, 80, 90, 120, 122, 144, 180, 183, 240, 244, 305, 360, 366, 488, 549, 610, 719, 720, 732, 915, 976, 1098, 1220, 1438, 1464, 1830, 2157, 2196, 2440, 2745, 2876, 2928, 3595, 3660, 4314, 4392, 4880, 5490, 5752, 6471, 7190, 7320, 8628, 8784, 10785, 10980, 11504, 12942, 14380, 14640, 17256, 21570, 21960, 25884, 28760, 32355, 34512, 43140, 43859, 43920, 51768, 57520, 64710, 86280, 87718, 103536, 129420, 131577, 172560, 175436, 219295, 258840, 263154, 350872, 394731, 438590, 517680, 526308, 657885, 701744, 789462, 877180, 1052616, 1315770, 1578924, 1754360, 1973655, 2105232, 2631540, 3157848, 3508720, 3947310, 5263080, 6315696, 7894620, 10526160, 15789240, 31578480]

約数ペア:

[(1, 31578480), (2, 15789240), (3, 10526160), (4, 7894620), (5, 6315696), (6, 5263080), (8, 3947310), (9, 3508720), (10, 3157848), (12, 2631540), (15, 2105232), (16, 1973655), (18, 1754360), (20, 1578924), (24, 1315770), (30, 1052616), (36, 877180), (40, 789462), (45, 701744), (48, 657885), (60, 526308), (61, 517680), (72, 438590), (80, 394731), (90, 350872), (120, 263154), (122, 258840), (144, 219295), (180, 175436), (183, 172560), (240, 131577), (244, 129420), (305, 103536), (360, 87718), (366, 86280), (488, 64710), (549, 57520), (610, 51768), (719, 43920), (720, 43859), (732, 43140), (915, 34512), (976, 32355), (1098, 28760), (1220, 25884), (1438, 21960), (1464, 21570), (1830, 17256), (2157, 14640), (2196, 14380), (2440, 12942), (2745, 11504), (2876, 10980), (2928, 10785), (3595, 8784), (3660, 8628), (4314, 7320), (4392, 7190), (4880, 6471), (5490, 5752)]