2078218215

素因数分解:

$3^4\times 5^1\times {\mathrm{163}}^1\times {\mathrm{31481}}^1$

素因数の和:31661

約数の個数: 40

約数和(自身を含む): 3748372848

約数和(自身を除く): 1670154633

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 163, 405, 489, 815, 1467, 2445, 4401, 7335, 13203, 22005, 31481, 66015, 94443, 157405, 283329, 472215, 849987, 1416645, 2549961, 4249935, 5131403, 12749805, 15394209, 25657015, 46182627, 76971045, 138547881, 230913135, 415643643, 692739405, 2078218215]

約数ペア:

[(1, 2078218215), (3, 692739405), (5, 415643643), (9, 230913135), (15, 138547881), (27, 76971045), (45, 46182627), (81, 25657015), (135, 15394209), (163, 12749805), (405, 5131403), (489, 4249935), (815, 2549961), (1467, 1416645), (2445, 849987), (4401, 472215), (7335, 283329), (13203, 157405), (22005, 94443), (31481, 66015)]