20796490

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{14543}}^1$

素因数の和:14574

約数の個数: 32

約数和(自身を含む): 43981056

約数和(自身を除く): 23184566

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 1430, 14543, 29086, 72715, 145430, 159973, 189059, 319946, 378118, 799865, 945295, 1599730, 1890590, 2079649, 4159298, 10398245, 20796490]

約数ペア:

[(1, 20796490), (2, 10398245), (5, 4159298), (10, 2079649), (11, 1890590), (13, 1599730), (22, 945295), (26, 799865), (55, 378118), (65, 319946), (110, 189059), (130, 159973), (143, 145430), (286, 72715), (715, 29086), (1430, 14543)]