20510270

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{1361}}^1$

素因数の和:1516

約数の個数: 32

約数和(自身を含む): 40598496

約数和(自身を除く): 20088226

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 137, 274, 685, 1361, 1370, 1507, 2722, 3014, 6805, 7535, 13610, 14971, 15070, 29942, 74855, 149710, 186457, 372914, 932285, 1864570, 2051027, 4102054, 10255135, 20510270]

約数ペア:

[(1, 20510270), (2, 10255135), (5, 4102054), (10, 2051027), (11, 1864570), (22, 932285), (55, 372914), (110, 186457), (137, 149710), (274, 74855), (685, 29942), (1361, 15070), (1370, 14971), (1507, 13610), (2722, 7535), (3014, 6805)]