81728208

素因数分解:

$2^4\times 3^2\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{197}}^1$

素因数の和:321

約数の個数: 120

約数和(自身を含む): 238743648

約数和(自身を除く): 157015440

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 43, 48, 67, 72, 86, 129, 134, 144, 172, 197, 201, 258, 268, 344, 387, 394, 402, 516, 536, 591, 603, 688, 774, 788, 804, 1032, 1072, 1182, 1206, 1548, 1576, 1608, 1773, 2064, 2364, 2412, 2881, 3096, 3152, 3216, 3546, 4728, 4824, 5762, 6192, 7092, 8471, 8643, 9456, 9648, 11524, 13199, 14184, 16942, 17286, 23048, 25413, 25929, 26398, 28368, 33884, 34572, 39597, 46096, 50826, 51858, 52796, 67768, 69144, 76239, 79194, 101652, 103716, 105592, 118791, 135536, 138288, 152478, 158388, 203304, 207432, 211184, 237582, 304956, 316776, 406608, 414864, 475164, 567557, 609912, 633552, 950328, 1135114, 1219824, 1702671, 1900656, 2270228, 3405342, 4540456, 5108013, 6810684, 9080912, 10216026, 13621368, 20432052, 27242736, 40864104, 81728208]

約数ペア:

[(1, 81728208), (2, 40864104), (3, 27242736), (4, 20432052), (6, 13621368), (8, 10216026), (9, 9080912), (12, 6810684), (16, 5108013), (18, 4540456), (24, 3405342), (36, 2270228), (43, 1900656), (48, 1702671), (67, 1219824), (72, 1135114), (86, 950328), (129, 633552), (134, 609912), (144, 567557), (172, 475164), (197, 414864), (201, 406608), (258, 316776), (268, 304956), (344, 237582), (387, 211184), (394, 207432), (402, 203304), (516, 158388), (536, 152478), (591, 138288), (603, 135536), (688, 118791), (774, 105592), (788, 103716), (804, 101652), (1032, 79194), (1072, 76239), (1182, 69144), (1206, 67768), (1548, 52796), (1576, 51858), (1608, 50826), (1773, 46096), (2064, 39597), (2364, 34572), (2412, 33884), (2881, 28368), (3096, 26398), (3152, 25929), (3216, 25413), (3546, 23048), (4728, 17286), (4824, 16942), (5762, 14184), (6192, 13199), (7092, 11524), (8471, 9648), (8643, 9456)]