81988038

素因数分解:

$2^1\times 3^4\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{331}}^1$

素因数の和:495

約数の個数: 80

約数和(自身を含む): 202466880

約数和(自身を除く): 120478842

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 27, 33, 54, 66, 81, 99, 139, 162, 198, 278, 297, 331, 417, 594, 662, 834, 891, 993, 1251, 1529, 1782, 1986, 2502, 2979, 3058, 3641, 3753, 4587, 5958, 7282, 7506, 8937, 9174, 10923, 11259, 13761, 17874, 21846, 22518, 26811, 27522, 32769, 41283, 46009, 53622, 65538, 82566, 92018, 98307, 123849, 138027, 196614, 247698, 276054, 294921, 414081, 506099, 589842, 828162, 1012198, 1242243, 1518297, 2484486, 3036594, 3726729, 4554891, 7453458, 9109782, 13664673, 27329346, 40994019, 81988038]

約数ペア:

[(1, 81988038), (2, 40994019), (3, 27329346), (6, 13664673), (9, 9109782), (11, 7453458), (18, 4554891), (22, 3726729), (27, 3036594), (33, 2484486), (54, 1518297), (66, 1242243), (81, 1012198), (99, 828162), (139, 589842), (162, 506099), (198, 414081), (278, 294921), (297, 276054), (331, 247698), (417, 196614), (594, 138027), (662, 123849), (834, 98307), (891, 92018), (993, 82566), (1251, 65538), (1529, 53622), (1782, 46009), (1986, 41283), (2502, 32769), (2979, 27522), (3058, 26811), (3641, 22518), (3753, 21846), (4587, 17874), (5958, 13761), (7282, 11259), (7506, 10923), (8937, 9174)]