81807008

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{683}}^1$

素因数の和:909

約数の個数: 48

約数和(自身を含む): 170644320

約数和(自身を除く): 88837312

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 152, 197, 304, 394, 608, 683, 788, 1366, 1576, 2732, 3152, 3743, 5464, 6304, 7486, 10928, 12977, 14972, 21856, 25954, 29944, 51908, 59888, 103816, 119776, 134551, 207632, 269102, 415264, 538204, 1076408, 2152816, 2556469, 4305632, 5112938, 10225876, 20451752, 40903504, 81807008]

約数ペア:

[(1, 81807008), (2, 40903504), (4, 20451752), (8, 10225876), (16, 5112938), (19, 4305632), (32, 2556469), (38, 2152816), (76, 1076408), (152, 538204), (197, 415264), (304, 269102), (394, 207632), (608, 134551), (683, 119776), (788, 103816), (1366, 59888), (1576, 51908), (2732, 29944), (3152, 25954), (3743, 21856), (5464, 14972), (6304, 12977), (7486, 10928)]