81125280

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{211}}^1$

素因数の和:324

約数の個数: 192

約数和(自身を含む): 288489600

約数和(自身を除く): 207364320

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, 72, 80, 89, 90, 96, 108, 120, 135, 144, 160, 178, 180, 211, 216, 240, 267, 270, 288, 356, 360, 422, 432, 445, 480, 534, 540, 633, 712, 720, 801, 844, 864, 890, 1055, 1068, 1080, 1266, 1335, 1424, 1440, 1602, 1688, 1780, 1899, 2110, 2136, 2160, 2403, 2532, 2670, 2848, 3165, 3204, 3376, 3560, 3798, 4005, 4220, 4272, 4320, 4806, 5064, 5340, 5697, 6330, 6408, 6752, 7120, 7596, 8010, 8440, 8544, 9495, 9612, 10128, 10680, 11394, 12015, 12660, 12816, 14240, 15192, 16020, 16880, 18779, 18990, 19224, 20256, 21360, 22788, 24030, 25320, 25632, 28485, 30384, 32040, 33760, 37558, 37980, 38448, 42720, 45576, 48060, 50640, 56337, 56970, 60768, 64080, 75116, 75960, 76896, 91152, 93895, 96120, 101280, 112674, 113940, 128160, 150232, 151920, 169011, 182304, 187790, 192240, 225348, 227880, 281685, 300464, 303840, 338022, 375580, 384480, 450696, 455760, 507033, 563370, 600928, 676044, 751160, 845055, 901392, 911520, 1014066, 1126740, 1352088, 1502320, 1690110, 1802784, 2028132, 2253480, 2535165, 2704176, 3004640, 3380220, 4056264, 4506960, 5070330, 5408352, 6760440, 8112528, 9013920, 10140660, 13520880, 16225056, 20281320, 27041760, 40562640, 81125280]

約数ペア:

[(1, 81125280), (2, 40562640), (3, 27041760), (4, 20281320), (5, 16225056), (6, 13520880), (8, 10140660), (9, 9013920), (10, 8112528), (12, 6760440), (15, 5408352), (16, 5070330), (18, 4506960), (20, 4056264), (24, 3380220), (27, 3004640), (30, 2704176), (32, 2535165), (36, 2253480), (40, 2028132), (45, 1802784), (48, 1690110), (54, 1502320), (60, 1352088), (72, 1126740), (80, 1014066), (89, 911520), (90, 901392), (96, 845055), (108, 751160), (120, 676044), (135, 600928), (144, 563370), (160, 507033), (178, 455760), (180, 450696), (211, 384480), (216, 375580), (240, 338022), (267, 303840), (270, 300464), (288, 281685), (356, 227880), (360, 225348), (422, 192240), (432, 187790), (445, 182304), (480, 169011), (534, 151920), (540, 150232), (633, 128160), (712, 113940), (720, 112674), (801, 101280), (844, 96120), (864, 93895), (890, 91152), (1055, 76896), (1068, 75960), (1080, 75116), (1266, 64080), (1335, 60768), (1424, 56970), (1440, 56337), (1602, 50640), (1688, 48060), (1780, 45576), (1899, 42720), (2110, 38448), (2136, 37980), (2160, 37558), (2403, 33760), (2532, 32040), (2670, 30384), (2848, 28485), (3165, 25632), (3204, 25320), (3376, 24030), (3560, 22788), (3798, 21360), (4005, 20256), (4220, 19224), (4272, 18990), (4320, 18779), (4806, 16880), (5064, 16020), (5340, 15192), (5697, 14240), (6330, 12816), (6408, 12660), (6752, 12015), (7120, 11394), (7596, 10680), (8010, 10128), (8440, 9612), (8544, 9495)]