904739240

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{207509}}^1$

素因数の和:207629

約数の個数: 32

約数和(自身を含む): 2054349000

約数和(自身を除く): 1149609760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 207509, 415018, 830036, 1037545, 1660072, 2075090, 4150180, 8300360, 22618481, 45236962, 90473924, 113092405, 180947848, 226184810, 452369620, 904739240]

約数ペア:

[(1, 904739240), (2, 452369620), (4, 226184810), (5, 180947848), (8, 113092405), (10, 90473924), (20, 45236962), (40, 22618481), (109, 8300360), (218, 4150180), (436, 2075090), (545, 1660072), (872, 1037545), (1090, 830036), (2180, 415018), (4360, 207509)]