20123093804

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1\times {\mathrm{61979}}^1$

素因数の和:62198

約数の個数: 48

約数和(自身を含む): 39484730880

約数和(自身を除く): 19361637076

約数列:

[1, 2, 4, 11, 22, 44, 47, 94, 157, 188, 314, 517, 628, 1034, 1727, 2068, 3454, 6908, 7379, 14758, 29516, 61979, 81169, 123958, 162338, 247916, 324676, 681769, 1363538, 2727076, 2913013, 5826026, 9730703, 11652052, 19461406, 32043143, 38922812, 64086286, 107037733, 128172572, 214075466, 428150932, 457343041, 914686082, 1829372164, 5030773451, 10061546902, 20123093804]

約数ペア:

[(1, 20123093804), (2, 10061546902), (4, 5030773451), (11, 1829372164), (22, 914686082), (44, 457343041), (47, 428150932), (94, 214075466), (157, 128172572), (188, 107037733), (314, 64086286), (517, 38922812), (628, 32043143), (1034, 19461406), (1727, 11652052), (2068, 9730703), (3454, 5826026), (6908, 2913013), (7379, 2727076), (14758, 1363538), (29516, 681769), (61979, 324676), (81169, 247916), (123958, 162338)]