81900078

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{33871}}^1$

素因数の和:33920

約数の個数: 32

約数和(自身を含む): 182095872

約数和(自身を除く): 100195794

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 62, 78, 93, 186, 403, 806, 1209, 2418, 33871, 67742, 101613, 203226, 440323, 880646, 1050001, 1320969, 2100002, 2641938, 3150003, 6300006, 13650013, 27300026, 40950039, 81900078]

約数ペア:

[(1, 81900078), (2, 40950039), (3, 27300026), (6, 13650013), (13, 6300006), (26, 3150003), (31, 2641938), (39, 2100002), (62, 1320969), (78, 1050001), (93, 880646), (186, 440323), (403, 203226), (806, 101613), (1209, 67742), (2418, 33871)]