12875005

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{1637}}^1$

素因数の和:1677

約数の個数: 24

約数和(自身を含む): 18299736

約数和(自身を除く): 5424731

約数列:

[1, 5, 11, 13, 55, 65, 121, 143, 605, 715, 1573, 1637, 7865, 8185, 18007, 21281, 90035, 106405, 198077, 234091, 990385, 1170455, 2575001, 12875005]

約数ペア:

[(1, 12875005), (5, 2575001), (11, 1170455), (13, 990385), (55, 234091), (65, 198077), (121, 106405), (143, 90035), (605, 21281), (715, 18007), (1573, 8185), (1637, 7865)]