81865556

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{151}}^1$

素因数の和:332

約数の個数: 48

約数和(自身を含む): 154441728

約数和(自身を除く): 72576172

約数列:

[1, 2, 4, 23, 46, 71, 83, 92, 142, 151, 166, 284, 302, 332, 604, 1633, 1909, 3266, 3473, 3818, 5893, 6532, 6946, 7636, 10721, 11786, 12533, 13892, 21442, 23572, 25066, 42884, 50132, 135539, 246583, 271078, 288259, 493166, 542156, 576518, 889843, 986332, 1153036, 1779686, 3559372, 20466389, 40932778, 81865556]

約数ペア:

[(1, 81865556), (2, 40932778), (4, 20466389), (23, 3559372), (46, 1779686), (71, 1153036), (83, 986332), (92, 889843), (142, 576518), (151, 542156), (166, 493166), (284, 288259), (302, 271078), (332, 246583), (604, 135539), (1633, 50132), (1909, 42884), (3266, 25066), (3473, 23572), (3818, 21442), (5893, 13892), (6532, 12533), (6946, 11786), (7636, 10721)]