20805926876

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{198841}}^1$

素因数の和:198990

約数の個数: 48

約数和(自身を含む): 43159849152

約数和(自身を除く): 22353922276

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 101, 148, 202, 259, 404, 518, 707, 1036, 1414, 2828, 3737, 7474, 14948, 26159, 52318, 104636, 198841, 397682, 795364, 1391887, 2783774, 5567548, 7357117, 14714234, 20082941, 29428468, 40165882, 51499819, 80331764, 102999638, 140580587, 205999276, 281161174, 562322348, 743068817, 1486137634, 2972275268, 5201481719, 10402963438, 20805926876]

約数ペア:

[(1, 20805926876), (2, 10402963438), (4, 5201481719), (7, 2972275268), (14, 1486137634), (28, 743068817), (37, 562322348), (74, 281161174), (101, 205999276), (148, 140580587), (202, 102999638), (259, 80331764), (404, 51499819), (518, 40165882), (707, 29428468), (1036, 20082941), (1414, 14714234), (2828, 7357117), (3737, 5567548), (7474, 2783774), (14948, 1391887), (26159, 795364), (52318, 397682), (104636, 198841)]