644149636

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{1009}}^1\times {\mathrm{12277}}^1$

素因数の和:13303

約数の個数: 24

約数和(自身を含む): 1215276440

約数和(自身を除く): 571126804

約数列:

[1, 2, 4, 13, 26, 52, 1009, 2018, 4036, 12277, 13117, 24554, 26234, 49108, 52468, 159601, 319202, 638404, 12387493, 24774986, 49549972, 161037409, 322074818, 644149636]

約数ペア:

[(1, 644149636), (2, 322074818), (4, 161037409), (13, 49549972), (26, 24774986), (52, 12387493), (1009, 638404), (2018, 319202), (4036, 159601), (12277, 52468), (13117, 49108), (24554, 26234)]