81706320

素因数分解:

$2^4\times 3^7\times 5^1\times {\mathrm{467}}^1$

素因数の和:501

約数の個数: 160

約数和(自身を含む): 285517440

約数和(自身を除く): 203811120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 243, 270, 324, 360, 405, 432, 467, 486, 540, 648, 720, 729, 810, 934, 972, 1080, 1215, 1296, 1401, 1458, 1620, 1868, 1944, 2160, 2187, 2335, 2430, 2802, 2916, 3240, 3645, 3736, 3888, 4203, 4374, 4670, 4860, 5604, 5832, 6480, 7005, 7290, 7472, 8406, 8748, 9340, 9720, 10935, 11208, 11664, 12609, 14010, 14580, 16812, 17496, 18680, 19440, 21015, 21870, 22416, 25218, 28020, 29160, 33624, 34992, 37360, 37827, 42030, 43740, 50436, 56040, 58320, 63045, 67248, 75654, 84060, 87480, 100872, 112080, 113481, 126090, 151308, 168120, 174960, 189135, 201744, 226962, 252180, 302616, 336240, 340443, 378270, 453924, 504360, 567405, 605232, 680886, 756540, 907848, 1008720, 1021329, 1134810, 1361772, 1513080, 1702215, 1815696, 2042658, 2269620, 2723544, 3026160, 3404430, 4085316, 4539240, 5106645, 5447088, 6808860, 8170632, 9078480, 10213290, 13617720, 16341264, 20426580, 27235440, 40853160, 81706320]

約数ペア:

[(1, 81706320), (2, 40853160), (3, 27235440), (4, 20426580), (5, 16341264), (6, 13617720), (8, 10213290), (9, 9078480), (10, 8170632), (12, 6808860), (15, 5447088), (16, 5106645), (18, 4539240), (20, 4085316), (24, 3404430), (27, 3026160), (30, 2723544), (36, 2269620), (40, 2042658), (45, 1815696), (48, 1702215), (54, 1513080), (60, 1361772), (72, 1134810), (80, 1021329), (81, 1008720), (90, 907848), (108, 756540), (120, 680886), (135, 605232), (144, 567405), (162, 504360), (180, 453924), (216, 378270), (240, 340443), (243, 336240), (270, 302616), (324, 252180), (360, 226962), (405, 201744), (432, 189135), (467, 174960), (486, 168120), (540, 151308), (648, 126090), (720, 113481), (729, 112080), (810, 100872), (934, 87480), (972, 84060), (1080, 75654), (1215, 67248), (1296, 63045), (1401, 58320), (1458, 56040), (1620, 50436), (1868, 43740), (1944, 42030), (2160, 37827), (2187, 37360), (2335, 34992), (2430, 33624), (2802, 29160), (2916, 28020), (3240, 25218), (3645, 22416), (3736, 21870), (3888, 21015), (4203, 19440), (4374, 18680), (4670, 17496), (4860, 16812), (5604, 14580), (5832, 14010), (6480, 12609), (7005, 11664), (7290, 11208), (7472, 10935), (8406, 9720), (8748, 9340)]