81981072

素因数分解:

$2^4\times 3^4\times {\mathrm{17}}^1\times {\mathrm{61}}^2$

素因数の和:159

約数の個数: 150

約数和(自身を含む): 255420594

約数和(自身を除く): 173439522

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 24, 27, 34, 36, 48, 51, 54, 61, 68, 72, 81, 102, 108, 122, 136, 144, 153, 162, 183, 204, 216, 244, 272, 306, 324, 366, 408, 432, 459, 488, 549, 612, 648, 732, 816, 918, 976, 1037, 1098, 1224, 1296, 1377, 1464, 1647, 1836, 2074, 2196, 2448, 2754, 2928, 3111, 3294, 3672, 3721, 4148, 4392, 4941, 5508, 6222, 6588, 7344, 7442, 8296, 8784, 9333, 9882, 11016, 11163, 12444, 13176, 14884, 16592, 18666, 19764, 22032, 22326, 24888, 26352, 27999, 29768, 33489, 37332, 39528, 44652, 49776, 55998, 59536, 63257, 66978, 74664, 79056, 83997, 89304, 100467, 111996, 126514, 133956, 149328, 167994, 178608, 189771, 200934, 223992, 253028, 267912, 301401, 335988, 379542, 401868, 447984, 506056, 535824, 569313, 602802, 671976, 759084, 803736, 1012112, 1138626, 1205604, 1343952, 1518168, 1607472, 1707939, 2277252, 2411208, 3036336, 3415878, 4554504, 4822416, 5123817, 6831756, 9109008, 10247634, 13663512, 20495268, 27327024, 40990536, 81981072]

約数ペア:

[(1, 81981072), (2, 40990536), (3, 27327024), (4, 20495268), (6, 13663512), (8, 10247634), (9, 9109008), (12, 6831756), (16, 5123817), (17, 4822416), (18, 4554504), (24, 3415878), (27, 3036336), (34, 2411208), (36, 2277252), (48, 1707939), (51, 1607472), (54, 1518168), (61, 1343952), (68, 1205604), (72, 1138626), (81, 1012112), (102, 803736), (108, 759084), (122, 671976), (136, 602802), (144, 569313), (153, 535824), (162, 506056), (183, 447984), (204, 401868), (216, 379542), (244, 335988), (272, 301401), (306, 267912), (324, 253028), (366, 223992), (408, 200934), (432, 189771), (459, 178608), (488, 167994), (549, 149328), (612, 133956), (648, 126514), (732, 111996), (816, 100467), (918, 89304), (976, 83997), (1037, 79056), (1098, 74664), (1224, 66978), (1296, 63257), (1377, 59536), (1464, 55998), (1647, 49776), (1836, 44652), (2074, 39528), (2196, 37332), (2448, 33489), (2754, 29768), (2928, 27999), (3111, 26352), (3294, 24888), (3672, 22326), (3721, 22032), (4148, 19764), (4392, 18666), (4941, 16592), (5508, 14884), (6222, 13176), (6588, 12444), (7344, 11163), (7442, 11016), (8296, 9882), (8784, 9333)]