81408960

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1229}}^1$

素因数の和:1275

約数の個数: 168

約数和(自身を含む): 292425120

約数和(自身を除く): 211016160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 30, 32, 36, 40, 45, 46, 48, 60, 64, 69, 72, 80, 90, 92, 96, 115, 120, 138, 144, 160, 180, 184, 192, 207, 230, 240, 276, 288, 320, 345, 360, 368, 414, 460, 480, 552, 576, 690, 720, 736, 828, 920, 960, 1035, 1104, 1229, 1380, 1440, 1472, 1656, 1840, 2070, 2208, 2458, 2760, 2880, 3312, 3680, 3687, 4140, 4416, 4916, 5520, 6145, 6624, 7360, 7374, 8280, 9832, 11040, 11061, 12290, 13248, 14748, 16560, 18435, 19664, 22080, 22122, 24580, 28267, 29496, 33120, 36870, 39328, 44244, 49160, 55305, 56534, 58992, 66240, 73740, 78656, 84801, 88488, 98320, 110610, 113068, 117984, 141335, 147480, 169602, 176976, 196640, 221220, 226136, 235968, 254403, 282670, 294960, 339204, 353952, 393280, 424005, 442440, 452272, 508806, 565340, 589920, 678408, 707904, 848010, 884880, 904544, 1017612, 1130680, 1179840, 1272015, 1356816, 1696020, 1769760, 1809088, 2035224, 2261360, 2544030, 2713632, 3392040, 3539520, 4070448, 4522720, 5088060, 5427264, 6784080, 8140896, 9045440, 10176120, 13568160, 16281792, 20352240, 27136320, 40704480, 81408960]

約数ペア:

[(1, 81408960), (2, 40704480), (3, 27136320), (4, 20352240), (5, 16281792), (6, 13568160), (8, 10176120), (9, 9045440), (10, 8140896), (12, 6784080), (15, 5427264), (16, 5088060), (18, 4522720), (20, 4070448), (23, 3539520), (24, 3392040), (30, 2713632), (32, 2544030), (36, 2261360), (40, 2035224), (45, 1809088), (46, 1769760), (48, 1696020), (60, 1356816), (64, 1272015), (69, 1179840), (72, 1130680), (80, 1017612), (90, 904544), (92, 884880), (96, 848010), (115, 707904), (120, 678408), (138, 589920), (144, 565340), (160, 508806), (180, 452272), (184, 442440), (192, 424005), (207, 393280), (230, 353952), (240, 339204), (276, 294960), (288, 282670), (320, 254403), (345, 235968), (360, 226136), (368, 221220), (414, 196640), (460, 176976), (480, 169602), (552, 147480), (576, 141335), (690, 117984), (720, 113068), (736, 110610), (828, 98320), (920, 88488), (960, 84801), (1035, 78656), (1104, 73740), (1229, 66240), (1380, 58992), (1440, 56534), (1472, 55305), (1656, 49160), (1840, 44244), (2070, 39328), (2208, 36870), (2458, 33120), (2760, 29496), (2880, 28267), (3312, 24580), (3680, 22122), (3687, 22080), (4140, 19664), (4416, 18435), (4916, 16560), (5520, 14748), (6145, 13248), (6624, 12290), (7360, 11061), (7374, 11040), (8280, 9832)]