81354756

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{9403}}^1$

素因数の和:9520

約数の個数: 48

約数和(自身を含む): 219075584

約数和(自身を除く): 137720828

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 103, 206, 309, 412, 618, 721, 1236, 1442, 2163, 2884, 4326, 8652, 9403, 18806, 28209, 37612, 56418, 65821, 112836, 131642, 197463, 263284, 394926, 789852, 968509, 1937018, 2905527, 3874036, 5811054, 6779563, 11622108, 13559126, 20338689, 27118252, 40677378, 81354756]

約数ペア:

[(1, 81354756), (2, 40677378), (3, 27118252), (4, 20338689), (6, 13559126), (7, 11622108), (12, 6779563), (14, 5811054), (21, 3874036), (28, 2905527), (42, 1937018), (84, 968509), (103, 789852), (206, 394926), (309, 263284), (412, 197463), (618, 131642), (721, 112836), (1236, 65821), (1442, 56418), (2163, 37612), (2884, 28209), (4326, 18806), (8652, 9403)]