168604840

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{145349}}^1$

素因数の和:145389

約数の個数: 32

約数和(自身を含む): 392445000

約数和(自身を除く): 223840160

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 145349, 290698, 581396, 726745, 1162792, 1453490, 2906980, 4215121, 5813960, 8430242, 16860484, 21075605, 33720968, 42151210, 84302420, 168604840]

約数ペア:

[(1, 168604840), (2, 84302420), (4, 42151210), (5, 33720968), (8, 21075605), (10, 16860484), (20, 8430242), (29, 5813960), (40, 4215121), (58, 2906980), (116, 1453490), (145, 1162792), (232, 726745), (290, 581396), (580, 290698), (1160, 145349)]