81006720

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1361}}^1$

素因数の和:1414

約数の個数: 128

約数和(自身を含む): 266734080

約数和(自身を除く): 185727360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 64, 80, 93, 96, 120, 124, 128, 155, 160, 186, 192, 240, 248, 310, 320, 372, 384, 465, 480, 496, 620, 640, 744, 930, 960, 992, 1240, 1361, 1488, 1860, 1920, 1984, 2480, 2722, 2976, 3720, 3968, 4083, 4960, 5444, 5952, 6805, 7440, 8166, 9920, 10888, 11904, 13610, 14880, 16332, 19840, 20415, 21776, 27220, 29760, 32664, 40830, 42191, 43552, 54440, 59520, 65328, 81660, 84382, 87104, 108880, 126573, 130656, 163320, 168764, 174208, 210955, 217760, 253146, 261312, 326640, 337528, 421910, 435520, 506292, 522624, 632865, 653280, 675056, 843820, 871040, 1012584, 1265730, 1306560, 1350112, 1687640, 2025168, 2531460, 2613120, 2700224, 3375280, 4050336, 5062920, 5400448, 6750560, 8100672, 10125840, 13501120, 16201344, 20251680, 27002240, 40503360, 81006720]

約数ペア:

[(1, 81006720), (2, 40503360), (3, 27002240), (4, 20251680), (5, 16201344), (6, 13501120), (8, 10125840), (10, 8100672), (12, 6750560), (15, 5400448), (16, 5062920), (20, 4050336), (24, 3375280), (30, 2700224), (31, 2613120), (32, 2531460), (40, 2025168), (48, 1687640), (60, 1350112), (62, 1306560), (64, 1265730), (80, 1012584), (93, 871040), (96, 843820), (120, 675056), (124, 653280), (128, 632865), (155, 522624), (160, 506292), (186, 435520), (192, 421910), (240, 337528), (248, 326640), (310, 261312), (320, 253146), (372, 217760), (384, 210955), (465, 174208), (480, 168764), (496, 163320), (620, 130656), (640, 126573), (744, 108880), (930, 87104), (960, 84382), (992, 81660), (1240, 65328), (1361, 59520), (1488, 54440), (1860, 43552), (1920, 42191), (1984, 40830), (2480, 32664), (2722, 29760), (2976, 27220), (3720, 21776), (3968, 20415), (4083, 19840), (4960, 16332), (5444, 14880), (5952, 13610), (6805, 11904), (7440, 10888), (8166, 9920)]