81377946

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2273}}^1$

素因数の和:2317

約数の個数: 80

約数和(自身を含む): 208016424

約数和(自身を除く): 126638478

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 27, 34, 39, 51, 54, 78, 81, 102, 117, 153, 162, 221, 234, 306, 351, 442, 459, 663, 702, 918, 1053, 1326, 1377, 1989, 2106, 2273, 2754, 3978, 4546, 5967, 6819, 11934, 13638, 17901, 20457, 29549, 35802, 38641, 40914, 59098, 61371, 77282, 88647, 115923, 122742, 177294, 184113, 231846, 265941, 347769, 368226, 502333, 531882, 695538, 797823, 1004666, 1043307, 1506999, 1595646, 2086614, 2393469, 3013998, 3129921, 4520997, 4786938, 6259842, 9041994, 13562991, 27125982, 40688973, 81377946]

約数ペア:

[(1, 81377946), (2, 40688973), (3, 27125982), (6, 13562991), (9, 9041994), (13, 6259842), (17, 4786938), (18, 4520997), (26, 3129921), (27, 3013998), (34, 2393469), (39, 2086614), (51, 1595646), (54, 1506999), (78, 1043307), (81, 1004666), (102, 797823), (117, 695538), (153, 531882), (162, 502333), (221, 368226), (234, 347769), (306, 265941), (351, 231846), (442, 184113), (459, 177294), (663, 122742), (702, 115923), (918, 88647), (1053, 77282), (1326, 61371), (1377, 59098), (1989, 40914), (2106, 38641), (2273, 35802), (2754, 29549), (3978, 20457), (4546, 17901), (5967, 13638), (6819, 11934)]