20659522832

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{657779}}^1$

素因数の和:657951

約数の個数: 40

約数和(自身を含む): 43392431040

約数和(自身を除く): 22732908208

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 151, 208, 302, 604, 1208, 1963, 2416, 3926, 7852, 15704, 31408, 657779, 1315558, 2631116, 5262232, 8551127, 10524464, 17102254, 34204508, 68409016, 99324629, 136818032, 198649258, 397298516, 794597032, 1291220177, 1589194064, 2582440354, 5164880708, 10329761416, 20659522832]

約数ペア:

[(1, 20659522832), (2, 10329761416), (4, 5164880708), (8, 2582440354), (13, 1589194064), (16, 1291220177), (26, 794597032), (52, 397298516), (104, 198649258), (151, 136818032), (208, 99324629), (302, 68409016), (604, 34204508), (1208, 17102254), (1963, 10524464), (2416, 8551127), (3926, 5262232), (7852, 2631116), (15704, 1315558), (31408, 657779)]