81291870

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{271}}^1$

素因数の和:399

約数の個数: 128

約数和(自身を含む): 239708160

約数和(自身を除く): 158416290

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 27, 30, 33, 45, 54, 55, 66, 90, 99, 101, 110, 135, 165, 198, 202, 270, 271, 297, 303, 330, 495, 505, 542, 594, 606, 813, 909, 990, 1010, 1111, 1355, 1485, 1515, 1626, 1818, 2222, 2439, 2710, 2727, 2970, 2981, 3030, 3333, 4065, 4545, 4878, 5454, 5555, 5962, 6666, 7317, 8130, 8943, 9090, 9999, 11110, 12195, 13635, 14634, 14905, 16665, 17886, 19998, 24390, 26829, 27270, 27371, 29810, 29997, 33330, 36585, 44715, 49995, 53658, 54742, 59994, 73170, 80487, 82113, 89430, 99990, 134145, 136855, 149985, 160974, 164226, 246339, 268290, 273710, 299970, 301081, 402435, 410565, 492678, 602162, 739017, 804870, 821130, 903243, 1231695, 1478034, 1505405, 1806486, 2463390, 2709729, 3010810, 3695085, 4516215, 5419458, 7390170, 8129187, 9032430, 13548645, 16258374, 27097290, 40645935, 81291870]

約数ペア:

[(1, 81291870), (2, 40645935), (3, 27097290), (5, 16258374), (6, 13548645), (9, 9032430), (10, 8129187), (11, 7390170), (15, 5419458), (18, 4516215), (22, 3695085), (27, 3010810), (30, 2709729), (33, 2463390), (45, 1806486), (54, 1505405), (55, 1478034), (66, 1231695), (90, 903243), (99, 821130), (101, 804870), (110, 739017), (135, 602162), (165, 492678), (198, 410565), (202, 402435), (270, 301081), (271, 299970), (297, 273710), (303, 268290), (330, 246339), (495, 164226), (505, 160974), (542, 149985), (594, 136855), (606, 134145), (813, 99990), (909, 89430), (990, 82113), (1010, 80487), (1111, 73170), (1355, 59994), (1485, 54742), (1515, 53658), (1626, 49995), (1818, 44715), (2222, 36585), (2439, 33330), (2710, 29997), (2727, 29810), (2970, 27371), (2981, 27270), (3030, 26829), (3333, 24390), (4065, 19998), (4545, 17886), (4878, 16665), (5454, 14905), (5555, 14634), (5962, 13635), (6666, 12195), (7317, 11110), (8130, 9999), (8943, 9090)]