20459710

素因数分解:

$2^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{28027}}^1$

素因数の和:28107

約数の個数: 16

約数和(自身を含む): 37333296

約数和(自身を除く): 16873586

約数列:

[1, 2, 5, 10, 73, 146, 365, 730, 28027, 56054, 140135, 280270, 2045971, 4091942, 10229855, 20459710]

約数ペア:

[(1, 20459710), (2, 10229855), (5, 4091942), (10, 2045971), (73, 280270), (146, 140135), (365, 56054), (730, 28027)]