20126876

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{647}}^1$

素因数の和:770

約数の個数: 48

約数和(自身を含む): 44416512

約数和(自身を除く): 24289636

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 101, 154, 202, 308, 404, 647, 707, 1111, 1294, 1414, 2222, 2588, 2828, 4444, 4529, 7117, 7777, 9058, 14234, 15554, 18116, 28468, 31108, 49819, 65347, 99638, 130694, 199276, 261388, 457429, 718817, 914858, 1437634, 1829716, 2875268, 5031719, 10063438, 20126876]

約数ペア:

[(1, 20126876), (2, 10063438), (4, 5031719), (7, 2875268), (11, 1829716), (14, 1437634), (22, 914858), (28, 718817), (44, 457429), (77, 261388), (101, 199276), (154, 130694), (202, 99638), (308, 65347), (404, 49819), (647, 31108), (707, 28468), (1111, 18116), (1294, 15554), (1414, 14234), (2222, 9058), (2588, 7777), (2828, 7117), (4444, 4529)]