20029895

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1$

素因数の和:239

約数の個数: 32

約数和(自身を含む): 26956800

約数和(自身を除く): 6926905

約数列:

[1, 5, 19, 23, 89, 95, 103, 115, 437, 445, 515, 1691, 1957, 2047, 2185, 2369, 8455, 9167, 9785, 10235, 11845, 38893, 45011, 45835, 174173, 194465, 210841, 225055, 870865, 1054205, 4005979, 20029895]

約数ペア:

[(1, 20029895), (5, 4005979), (19, 1054205), (23, 870865), (89, 225055), (95, 210841), (103, 194465), (115, 174173), (437, 45835), (445, 45011), (515, 38893), (1691, 11845), (1957, 10235), (2047, 9785), (2185, 9167), (2369, 8455)]