81396480

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:123

約数の個数: 288

約数和(自身を含む): 296690688

約数和(自身を除く): 215294208

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 41, 44, 47, 48, 55, 60, 64, 66, 80, 82, 88, 94, 96, 110, 120, 123, 128, 132, 141, 160, 164, 165, 176, 188, 192, 205, 220, 235, 240, 246, 256, 264, 282, 320, 328, 330, 352, 376, 384, 410, 440, 451, 470, 480, 492, 517, 528, 564, 615, 640, 656, 660, 704, 705, 752, 768, 820, 880, 902, 940, 960, 984, 1034, 1056, 1128, 1230, 1280, 1312, 1320, 1353, 1408, 1410, 1504, 1551, 1640, 1760, 1804, 1880, 1920, 1927, 1968, 2068, 2112, 2255, 2256, 2460, 2585, 2624, 2640, 2706, 2816, 2820, 3008, 3102, 3280, 3520, 3608, 3760, 3840, 3854, 3936, 4136, 4224, 4510, 4512, 4920, 5170, 5248, 5280, 5412, 5640, 5781, 6016, 6204, 6560, 6765, 7040, 7216, 7520, 7708, 7755, 7872, 8272, 8448, 9020, 9024, 9635, 9840, 10340, 10496, 10560, 10824, 11280, 11562, 12032, 12408, 13120, 13530, 14080, 14432, 15040, 15416, 15510, 15744, 16544, 18040, 18048, 19270, 19680, 20680, 21120, 21197, 21648, 22560, 23124, 24816, 26240, 27060, 28864, 28905, 30080, 30832, 31020, 31488, 33088, 36080, 36096, 38540, 39360, 41360, 42240, 42394, 43296, 45120, 46248, 49632, 52480, 54120, 57728, 57810, 60160, 61664, 62040, 63591, 66176, 72160, 77080, 78720, 82720, 84788, 86592, 90240, 92496, 99264, 105985, 108240, 115456, 115620, 123328, 124080, 127182, 132352, 144320, 154160, 157440, 165440, 169576, 173184, 180480, 184992, 198528, 211970, 216480, 231240, 246656, 248160, 254364, 288640, 308320, 317955, 330880, 339152, 346368, 369984, 397056, 423940, 432960, 462480, 493312, 496320, 508728, 577280, 616640, 635910, 661760, 678304, 739968, 847880, 865920, 924960, 992640, 1017456, 1233280, 1271820, 1356608, 1479936, 1695760, 1731840, 1849920, 1985280, 2034912, 2466560, 2543640, 2713216, 3391520, 3699840, 4069824, 5087280, 5426432, 6783040, 7399680, 8139648, 10174560, 13566080, 16279296, 20349120, 27132160, 40698240, 81396480]

約数ペア:

[(1, 81396480), (2, 40698240), (3, 27132160), (4, 20349120), (5, 16279296), (6, 13566080), (8, 10174560), (10, 8139648), (11, 7399680), (12, 6783040), (15, 5426432), (16, 5087280), (20, 4069824), (22, 3699840), (24, 3391520), (30, 2713216), (32, 2543640), (33, 2466560), (40, 2034912), (41, 1985280), (44, 1849920), (47, 1731840), (48, 1695760), (55, 1479936), (60, 1356608), (64, 1271820), (66, 1233280), (80, 1017456), (82, 992640), (88, 924960), (94, 865920), (96, 847880), (110, 739968), (120, 678304), (123, 661760), (128, 635910), (132, 616640), (141, 577280), (160, 508728), (164, 496320), (165, 493312), (176, 462480), (188, 432960), (192, 423940), (205, 397056), (220, 369984), (235, 346368), (240, 339152), (246, 330880), (256, 317955), (264, 308320), (282, 288640), (320, 254364), (328, 248160), (330, 246656), (352, 231240), (376, 216480), (384, 211970), (410, 198528), (440, 184992), (451, 180480), (470, 173184), (480, 169576), (492, 165440), (517, 157440), (528, 154160), (564, 144320), (615, 132352), (640, 127182), (656, 124080), (660, 123328), (704, 115620), (705, 115456), (752, 108240), (768, 105985), (820, 99264), (880, 92496), (902, 90240), (940, 86592), (960, 84788), (984, 82720), (1034, 78720), (1056, 77080), (1128, 72160), (1230, 66176), (1280, 63591), (1312, 62040), (1320, 61664), (1353, 60160), (1408, 57810), (1410, 57728), (1504, 54120), (1551, 52480), (1640, 49632), (1760, 46248), (1804, 45120), (1880, 43296), (1920, 42394), (1927, 42240), (1968, 41360), (2068, 39360), (2112, 38540), (2255, 36096), (2256, 36080), (2460, 33088), (2585, 31488), (2624, 31020), (2640, 30832), (2706, 30080), (2816, 28905), (2820, 28864), (3008, 27060), (3102, 26240), (3280, 24816), (3520, 23124), (3608, 22560), (3760, 21648), (3840, 21197), (3854, 21120), (3936, 20680), (4136, 19680), (4224, 19270), (4510, 18048), (4512, 18040), (4920, 16544), (5170, 15744), (5248, 15510), (5280, 15416), (5412, 15040), (5640, 14432), (5781, 14080), (6016, 13530), (6204, 13120), (6560, 12408), (6765, 12032), (7040, 11562), (7216, 11280), (7520, 10824), (7708, 10560), (7755, 10496), (7872, 10340), (8272, 9840), (8448, 9635), (9020, 9024)]