643745520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{81281}}^1$

素因数の和:81311

約数の個数: 120

約数和(自身を含む): 2358478512

約数和(自身を除く): 1714732992

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 48, 55, 60, 66, 72, 80, 88, 90, 99, 110, 120, 132, 144, 165, 176, 180, 198, 220, 240, 264, 330, 360, 396, 440, 495, 528, 660, 720, 792, 880, 990, 1320, 1584, 1980, 2640, 3960, 7920, 81281, 162562, 243843, 325124, 406405, 487686, 650248, 731529, 812810, 894091, 975372, 1219215, 1300496, 1463058, 1625620, 1788182, 1950744, 2438430, 2682273, 2926116, 3251240, 3576364, 3657645, 3901488, 4470455, 4876860, 5364546, 5852232, 6502480, 7152728, 7315290, 8046819, 8940910, 9753720, 10729092, 11704464, 13411365, 14305456, 14630580, 16093638, 17881820, 19507440, 21458184, 26822730, 29261160, 32187276, 35763640, 40234095, 42916368, 53645460, 58522320, 64374552, 71527280, 80468190, 107290920, 128749104, 160936380, 214581840, 321872760, 643745520]

約数ペア:

[(1, 643745520), (2, 321872760), (3, 214581840), (4, 160936380), (5, 128749104), (6, 107290920), (8, 80468190), (9, 71527280), (10, 64374552), (11, 58522320), (12, 53645460), (15, 42916368), (16, 40234095), (18, 35763640), (20, 32187276), (22, 29261160), (24, 26822730), (30, 21458184), (33, 19507440), (36, 17881820), (40, 16093638), (44, 14630580), (45, 14305456), (48, 13411365), (55, 11704464), (60, 10729092), (66, 9753720), (72, 8940910), (80, 8046819), (88, 7315290), (90, 7152728), (99, 6502480), (110, 5852232), (120, 5364546), (132, 4876860), (144, 4470455), (165, 3901488), (176, 3657645), (180, 3576364), (198, 3251240), (220, 2926116), (240, 2682273), (264, 2438430), (330, 1950744), (360, 1788182), (396, 1625620), (440, 1463058), (495, 1300496), (528, 1219215), (660, 975372), (720, 894091), (792, 812810), (880, 731529), (990, 650248), (1320, 487686), (1584, 406405), (1980, 325124), (2640, 243843), (3960, 162562), (7920, 81281)]