164040640

素因数分解:

$2^6\times 5^1\times {\mathrm{109}}^1\times {\mathrm{4703}}^1$

素因数の和:4829

約数の個数: 56

約数和(自身を含む): 394289280

約数和(自身を除く): 230248640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 109, 160, 218, 320, 436, 545, 872, 1090, 1744, 2180, 3488, 4360, 4703, 6976, 8720, 9406, 17440, 18812, 23515, 34880, 37624, 47030, 75248, 94060, 150496, 188120, 300992, 376240, 512627, 752480, 1025254, 1504960, 2050508, 2563135, 4101016, 5126270, 8202032, 10252540, 16404064, 20505080, 32808128, 41010160, 82020320, 164040640]

約数ペア:

[(1, 164040640), (2, 82020320), (4, 41010160), (5, 32808128), (8, 20505080), (10, 16404064), (16, 10252540), (20, 8202032), (32, 5126270), (40, 4101016), (64, 2563135), (80, 2050508), (109, 1504960), (160, 1025254), (218, 752480), (320, 512627), (436, 376240), (545, 300992), (872, 188120), (1090, 150496), (1744, 94060), (2180, 75248), (3488, 47030), (4360, 37624), (4703, 34880), (6976, 23515), (8720, 18812), (9406, 17440)]