20123688475

素因数分解:

$5^2\times {\mathrm{11}}^4\times {\mathrm{54979}}^1$

素因数の和:55033

約数の個数: 30

約数和(自身を含む): 27449039900

約数和(自身を除く): 7325351425

約数列:

[1, 5, 11, 25, 55, 121, 275, 605, 1331, 3025, 6655, 14641, 33275, 54979, 73205, 274895, 366025, 604769, 1374475, 3023845, 6652459, 15119225, 33262295, 73177049, 166311475, 365885245, 804947539, 1829426225, 4024737695, 20123688475]

約数ペア:

[(1, 20123688475), (5, 4024737695), (11, 1829426225), (25, 804947539), (55, 365885245), (121, 166311475), (275, 73177049), (605, 33262295), (1331, 15119225), (3025, 6652459), (6655, 3023845), (14641, 1374475), (33275, 604769), (54979, 366025), (73205, 274895)]