20459512

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{251}}^1\times {\mathrm{443}}^1$

素因数の和:723

約数の個数: 32

約数和(自身を含む): 40279680

約数和(自身を除く): 19820168

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 251, 443, 502, 886, 1004, 1772, 2008, 3544, 5773, 10189, 11546, 20378, 23092, 40756, 46184, 81512, 111193, 222386, 444772, 889544, 2557439, 5114878, 10229756, 20459512]

約数ペア:

[(1, 20459512), (2, 10229756), (4, 5114878), (8, 2557439), (23, 889544), (46, 444772), (92, 222386), (184, 111193), (251, 81512), (443, 46184), (502, 40756), (886, 23092), (1004, 20378), (1772, 11546), (2008, 10189), (3544, 5773)]