261308160

素因数分解:

$2^8\times 3^3\times 5^1\times {\mathrm{7561}}^1$

素因数の和:7591

約数の個数: 144

約数和(自身を含む): 927403680

約数和(自身を除く): 666095520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 108, 120, 128, 135, 144, 160, 180, 192, 216, 240, 256, 270, 288, 320, 360, 384, 432, 480, 540, 576, 640, 720, 768, 864, 960, 1080, 1152, 1280, 1440, 1728, 1920, 2160, 2304, 2880, 3456, 3840, 4320, 5760, 6912, 7561, 8640, 11520, 15122, 17280, 22683, 30244, 34560, 37805, 45366, 60488, 68049, 75610, 90732, 113415, 120976, 136098, 151220, 181464, 204147, 226830, 241952, 272196, 302440, 340245, 362928, 408294, 453660, 483904, 544392, 604880, 680490, 725856, 816588, 907320, 967808, 1020735, 1088784, 1209760, 1360980, 1451712, 1633176, 1814640, 1935616, 2041470, 2177568, 2419520, 2721960, 2903424, 3266352, 3629280, 4082940, 4355136, 4839040, 5443920, 5806848, 6532704, 7258560, 8165880, 8710272, 9678080, 10887840, 13065408, 14517120, 16331760, 17420544, 21775680, 26130816, 29034240, 32663520, 43551360, 52261632, 65327040, 87102720, 130654080, 261308160]

約数ペア:

[(1, 261308160), (2, 130654080), (3, 87102720), (4, 65327040), (5, 52261632), (6, 43551360), (8, 32663520), (9, 29034240), (10, 26130816), (12, 21775680), (15, 17420544), (16, 16331760), (18, 14517120), (20, 13065408), (24, 10887840), (27, 9678080), (30, 8710272), (32, 8165880), (36, 7258560), (40, 6532704), (45, 5806848), (48, 5443920), (54, 4839040), (60, 4355136), (64, 4082940), (72, 3629280), (80, 3266352), (90, 2903424), (96, 2721960), (108, 2419520), (120, 2177568), (128, 2041470), (135, 1935616), (144, 1814640), (160, 1633176), (180, 1451712), (192, 1360980), (216, 1209760), (240, 1088784), (256, 1020735), (270, 967808), (288, 907320), (320, 816588), (360, 725856), (384, 680490), (432, 604880), (480, 544392), (540, 483904), (576, 453660), (640, 408294), (720, 362928), (768, 340245), (864, 302440), (960, 272196), (1080, 241952), (1152, 226830), (1280, 204147), (1440, 181464), (1728, 151220), (1920, 136098), (2160, 120976), (2304, 113415), (2880, 90732), (3456, 75610), (3840, 68049), (4320, 60488), (5760, 45366), (6912, 37805), (7561, 34560), (8640, 30244), (11520, 22683), (15122, 17280)]