1640486341435

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{419}}^1\times {\mathrm{2531}}^1\times {\mathrm{18199}}^1$

素因数の和:21171

約数の個数: 32

約数和(自身を含む): 2090297664000

約数和(自身を除く): 449811322565

約数列:

[1, 5, 17, 85, 419, 2095, 2531, 7123, 12655, 18199, 35615, 43027, 90995, 215135, 309383, 1060489, 1546915, 5302445, 7625381, 18028313, 38126905, 46061669, 90141565, 129631477, 230308345, 648157385, 783048373, 3915241865, 19299839311, 96499196555, 328097268287, 1640486341435]

約数ペア:

[(1, 1640486341435), (5, 328097268287), (17, 96499196555), (85, 19299839311), (419, 3915241865), (2095, 783048373), (2531, 648157385), (7123, 230308345), (12655, 129631477), (18199, 90141565), (35615, 46061669), (43027, 38126905), (90995, 18028313), (215135, 7625381), (309383, 5302445), (1060489, 1546915)]