81385398

素因数分解:

$2^1\times 3^4\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{193}}^1$

素因数の和:363

約数の個数: 80

約数和(自身を含む): 194364720

約数和(自身を除く): 112979322

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 81, 114, 137, 162, 171, 193, 274, 342, 386, 411, 513, 579, 822, 1026, 1158, 1233, 1539, 1737, 2466, 2603, 3078, 3474, 3667, 3699, 5206, 5211, 7334, 7398, 7809, 10422, 11001, 11097, 15618, 15633, 22002, 22194, 23427, 26441, 31266, 33003, 46854, 52882, 66006, 70281, 79323, 99009, 140562, 158646, 198018, 210843, 237969, 297027, 421686, 475938, 502379, 594054, 713907, 1004758, 1427814, 1507137, 2141721, 3014274, 4283442, 4521411, 9042822, 13564233, 27128466, 40692699, 81385398]

約数ペア:

[(1, 81385398), (2, 40692699), (3, 27128466), (6, 13564233), (9, 9042822), (18, 4521411), (19, 4283442), (27, 3014274), (38, 2141721), (54, 1507137), (57, 1427814), (81, 1004758), (114, 713907), (137, 594054), (162, 502379), (171, 475938), (193, 421686), (274, 297027), (342, 237969), (386, 210843), (411, 198018), (513, 158646), (579, 140562), (822, 99009), (1026, 79323), (1158, 70281), (1233, 66006), (1539, 52882), (1737, 46854), (2466, 33003), (2603, 31266), (3078, 26441), (3474, 23427), (3667, 22194), (3699, 22002), (5206, 15633), (5211, 15618), (7334, 11097), (7398, 11001), (7809, 10422)]