164907440

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{29033}}^1$

素因数の和:29117

約数の個数: 40

約数和(自身を含む): 388823328

約数和(自身を除く): 223915888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 29033, 58066, 116132, 145165, 232264, 290330, 464528, 580660, 1161320, 2061343, 2322640, 4122686, 8245372, 10306715, 16490744, 20613430, 32981488, 41226860, 82453720, 164907440]

約数ペア:

[(1, 164907440), (2, 82453720), (4, 41226860), (5, 32981488), (8, 20613430), (10, 16490744), (16, 10306715), (20, 8245372), (40, 4122686), (71, 2322640), (80, 2061343), (142, 1161320), (284, 580660), (355, 464528), (568, 290330), (710, 232264), (1136, 145165), (1420, 116132), (2840, 58066), (5680, 29033)]