81663228

素因数分解:

$2^2\times 3^4\times {\mathrm{307}}^1\times {\mathrm{821}}^1$

素因数の和:1144

約数の個数: 60

約数和(自身を含む): 214440072

約数和(自身を除く): 132776844

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 307, 324, 614, 821, 921, 1228, 1642, 1842, 2463, 2763, 3284, 3684, 4926, 5526, 7389, 8289, 9852, 11052, 14778, 16578, 22167, 24867, 29556, 33156, 44334, 49734, 66501, 88668, 99468, 133002, 252047, 266004, 504094, 756141, 1008188, 1512282, 2268423, 3024564, 4536846, 6805269, 9073692, 13610538, 20415807, 27221076, 40831614, 81663228]

約数ペア:

[(1, 81663228), (2, 40831614), (3, 27221076), (4, 20415807), (6, 13610538), (9, 9073692), (12, 6805269), (18, 4536846), (27, 3024564), (36, 2268423), (54, 1512282), (81, 1008188), (108, 756141), (162, 504094), (307, 266004), (324, 252047), (614, 133002), (821, 99468), (921, 88668), (1228, 66501), (1642, 49734), (1842, 44334), (2463, 33156), (2763, 29556), (3284, 24867), (3684, 22167), (4926, 16578), (5526, 14778), (7389, 11052), (8289, 9852)]