20201005181

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{257}}^1\times {\mathrm{15973}}^1$

素因数の和:16293

約数の個数: 32

約数和(自身を含む): 25057455360

約数和(自身を除く): 4856450179

約数列:

[1, 7, 19, 37, 133, 257, 259, 703, 1799, 4883, 4921, 9509, 15973, 34181, 66563, 111811, 180671, 303487, 591001, 1264697, 2124409, 4105061, 4137007, 11229019, 28735427, 77996159, 78603133, 151887257, 545973113, 1063210799, 2885857883, 20201005181]

約数ペア:

[(1, 20201005181), (7, 2885857883), (19, 1063210799), (37, 545973113), (133, 151887257), (257, 78603133), (259, 77996159), (703, 28735427), (1799, 11229019), (4883, 4137007), (4921, 4105061), (9509, 2124409), (15973, 1264697), (34181, 591001), (66563, 303487), (111811, 180671)]