81112444

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{947}}^1$

素因数の和:1007

約数の個数: 72

約数和(自身を含む): 181560960

約数和(自身を除く): 100448516

約数列:

[1, 2, 4, 7, 14, 19, 23, 28, 38, 46, 49, 76, 92, 98, 133, 161, 196, 266, 322, 437, 532, 644, 874, 931, 947, 1127, 1748, 1862, 1894, 2254, 3059, 3724, 3788, 4508, 6118, 6629, 12236, 13258, 17993, 21413, 21781, 26516, 35986, 42826, 43562, 46403, 71972, 85652, 87124, 92806, 125951, 152467, 185612, 251902, 304934, 413839, 503804, 609868, 827678, 881657, 1067269, 1655356, 1763314, 2134538, 2896873, 3526628, 4269076, 5793746, 11587492, 20278111, 40556222, 81112444]

約数ペア:

[(1, 81112444), (2, 40556222), (4, 20278111), (7, 11587492), (14, 5793746), (19, 4269076), (23, 3526628), (28, 2896873), (38, 2134538), (46, 1763314), (49, 1655356), (76, 1067269), (92, 881657), (98, 827678), (133, 609868), (161, 503804), (196, 413839), (266, 304934), (322, 251902), (437, 185612), (532, 152467), (644, 125951), (874, 92806), (931, 87124), (947, 85652), (1127, 71972), (1748, 46403), (1862, 43562), (1894, 42826), (2254, 35986), (3059, 26516), (3724, 21781), (3788, 21413), (4508, 17993), (6118, 13258), (6629, 12236)]