27908720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:143

約数の個数: 160

約数和(自身を含む): 81185280

約数和(自身を除く): 53276560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 43, 56, 61, 70, 76, 80, 86, 95, 112, 122, 133, 140, 152, 172, 190, 215, 244, 266, 280, 301, 304, 305, 344, 380, 427, 430, 488, 532, 560, 602, 610, 665, 688, 760, 817, 854, 860, 976, 1064, 1159, 1204, 1220, 1330, 1505, 1520, 1634, 1708, 1720, 2128, 2135, 2318, 2408, 2440, 2623, 2660, 3010, 3268, 3416, 3440, 4085, 4270, 4636, 4816, 4880, 5246, 5320, 5719, 5795, 6020, 6536, 6832, 8113, 8170, 8540, 9272, 10492, 10640, 11438, 11590, 12040, 13072, 13115, 16226, 16340, 17080, 18361, 18544, 20984, 22876, 23180, 24080, 26230, 28595, 32452, 32680, 34160, 36722, 40565, 41968, 45752, 46360, 49837, 52460, 57190, 64904, 65360, 73444, 81130, 91504, 91805, 92720, 99674, 104920, 114380, 129808, 146888, 162260, 183610, 199348, 209840, 228760, 249185, 293776, 324520, 348859, 367220, 398696, 457520, 498370, 649040, 697718, 734440, 797392, 996740, 1395436, 1468880, 1744295, 1993480, 2790872, 3488590, 3986960, 5581744, 6977180, 13954360, 27908720]

約数ペア:

[(1, 27908720), (2, 13954360), (4, 6977180), (5, 5581744), (7, 3986960), (8, 3488590), (10, 2790872), (14, 1993480), (16, 1744295), (19, 1468880), (20, 1395436), (28, 996740), (35, 797392), (38, 734440), (40, 697718), (43, 649040), (56, 498370), (61, 457520), (70, 398696), (76, 367220), (80, 348859), (86, 324520), (95, 293776), (112, 249185), (122, 228760), (133, 209840), (140, 199348), (152, 183610), (172, 162260), (190, 146888), (215, 129808), (244, 114380), (266, 104920), (280, 99674), (301, 92720), (304, 91805), (305, 91504), (344, 81130), (380, 73444), (427, 65360), (430, 64904), (488, 57190), (532, 52460), (560, 49837), (602, 46360), (610, 45752), (665, 41968), (688, 40565), (760, 36722), (817, 34160), (854, 32680), (860, 32452), (976, 28595), (1064, 26230), (1159, 24080), (1204, 23180), (1220, 22876), (1330, 20984), (1505, 18544), (1520, 18361), (1634, 17080), (1708, 16340), (1720, 16226), (2128, 13115), (2135, 13072), (2318, 12040), (2408, 11590), (2440, 11438), (2623, 10640), (2660, 10492), (3010, 9272), (3268, 8540), (3416, 8170), (3440, 8113), (4085, 6832), (4270, 6536), (4636, 6020), (4816, 5795), (4880, 5719), (5246, 5320)]