81545906

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^2$

素因数の和:203

約数の個数: 48

約数和(自身を含む): 144557784

約数和(自身を除く): 63011878

約数列:

[1, 2, 13, 17, 26, 34, 53, 59, 106, 118, 221, 442, 689, 767, 901, 1003, 1378, 1534, 1802, 2006, 3127, 3481, 6254, 6962, 11713, 13039, 23426, 26078, 40651, 45253, 53159, 59177, 81302, 90506, 106318, 118354, 184493, 368986, 691067, 769301, 1382134, 1538602, 2398409, 3136381, 4796818, 6272762, 40772953, 81545906]

約数ペア:

[(1, 81545906), (2, 40772953), (13, 6272762), (17, 4796818), (26, 3136381), (34, 2398409), (53, 1538602), (59, 1382134), (106, 769301), (118, 691067), (221, 368986), (442, 184493), (689, 118354), (767, 106318), (901, 90506), (1003, 81302), (1378, 59177), (1534, 53159), (1802, 45253), (2006, 40651), (3127, 26078), (3481, 23426), (6254, 13039), (6962, 11713)]