81265356

素因数分解:

$2^2\times 3^4\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{307}}^1$

素因数の和:385

約数の個数: 120

約数和(自身を含む): 229570880

約数和(自身を除く): 148305524

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 27, 36, 38, 43, 54, 57, 76, 81, 86, 108, 114, 129, 162, 171, 172, 228, 258, 307, 324, 342, 387, 513, 516, 614, 684, 774, 817, 921, 1026, 1161, 1228, 1539, 1548, 1634, 1842, 2052, 2322, 2451, 2763, 3078, 3268, 3483, 3684, 4644, 4902, 5526, 5833, 6156, 6966, 7353, 8289, 9804, 11052, 11666, 13201, 13932, 14706, 16578, 17499, 22059, 23332, 24867, 26402, 29412, 33156, 34998, 39603, 44118, 49734, 52497, 52804, 66177, 69996, 79206, 88236, 99468, 104994, 118809, 132354, 157491, 158412, 209988, 237618, 250819, 264708, 314982, 356427, 472473, 475236, 501638, 629964, 712854, 752457, 944946, 1003276, 1069281, 1425708, 1504914, 1889892, 2138562, 2257371, 3009828, 4277124, 4514742, 6772113, 9029484, 13544226, 20316339, 27088452, 40632678, 81265356]

約数ペア:

[(1, 81265356), (2, 40632678), (3, 27088452), (4, 20316339), (6, 13544226), (9, 9029484), (12, 6772113), (18, 4514742), (19, 4277124), (27, 3009828), (36, 2257371), (38, 2138562), (43, 1889892), (54, 1504914), (57, 1425708), (76, 1069281), (81, 1003276), (86, 944946), (108, 752457), (114, 712854), (129, 629964), (162, 501638), (171, 475236), (172, 472473), (228, 356427), (258, 314982), (307, 264708), (324, 250819), (342, 237618), (387, 209988), (513, 158412), (516, 157491), (614, 132354), (684, 118809), (774, 104994), (817, 99468), (921, 88236), (1026, 79206), (1161, 69996), (1228, 66177), (1539, 52804), (1548, 52497), (1634, 49734), (1842, 44118), (2052, 39603), (2322, 34998), (2451, 33156), (2763, 29412), (3078, 26402), (3268, 24867), (3483, 23332), (3684, 22059), (4644, 17499), (4902, 16578), (5526, 14706), (5833, 13932), (6156, 13201), (6966, 11666), (7353, 11052), (8289, 9804)]