81964344

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2609}}^1$

素因数の和:2653

約数の個数: 128

約数和(自身を含む): 270604800

約数和(自身を除く): 188640456

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 17, 21, 22, 24, 28, 33, 34, 42, 44, 51, 56, 66, 68, 77, 84, 88, 102, 119, 132, 136, 154, 168, 187, 204, 231, 238, 264, 308, 357, 374, 408, 462, 476, 561, 616, 714, 748, 924, 952, 1122, 1309, 1428, 1496, 1848, 2244, 2609, 2618, 2856, 3927, 4488, 5218, 5236, 7827, 7854, 10436, 10472, 15654, 15708, 18263, 20872, 28699, 31308, 31416, 36526, 44353, 54789, 57398, 62616, 73052, 86097, 88706, 109578, 114796, 133059, 146104, 172194, 177412, 200893, 219156, 229592, 266118, 310471, 344388, 354824, 401786, 438312, 487883, 532236, 602679, 620942, 688776, 803572, 931413, 975766, 1064472, 1205358, 1241884, 1463649, 1607144, 1862826, 1951532, 2410716, 2483768, 2927298, 3415181, 3725652, 3903064, 4821432, 5854596, 6830362, 7451304, 10245543, 11709192, 13660724, 20491086, 27321448, 40982172, 81964344]

約数ペア:

[(1, 81964344), (2, 40982172), (3, 27321448), (4, 20491086), (6, 13660724), (7, 11709192), (8, 10245543), (11, 7451304), (12, 6830362), (14, 5854596), (17, 4821432), (21, 3903064), (22, 3725652), (24, 3415181), (28, 2927298), (33, 2483768), (34, 2410716), (42, 1951532), (44, 1862826), (51, 1607144), (56, 1463649), (66, 1241884), (68, 1205358), (77, 1064472), (84, 975766), (88, 931413), (102, 803572), (119, 688776), (132, 620942), (136, 602679), (154, 532236), (168, 487883), (187, 438312), (204, 401786), (231, 354824), (238, 344388), (264, 310471), (308, 266118), (357, 229592), (374, 219156), (408, 200893), (462, 177412), (476, 172194), (561, 146104), (616, 133059), (714, 114796), (748, 109578), (924, 88706), (952, 86097), (1122, 73052), (1309, 62616), (1428, 57398), (1496, 54789), (1848, 44353), (2244, 36526), (2609, 31416), (2618, 31308), (2856, 28699), (3927, 20872), (4488, 18263), (5218, 15708), (5236, 15654), (7827, 10472), (7854, 10436)]