20768425

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1901}}^1$

素因数の和:1953

約数の個数: 24

約数和(自身を含む): 28301760

約数和(自身を除く): 7533335

約数列:

[1, 5, 19, 23, 25, 95, 115, 437, 475, 575, 1901, 2185, 9505, 10925, 36119, 43723, 47525, 180595, 218615, 830737, 902975, 1093075, 4153685, 20768425]

約数ペア:

[(1, 20768425), (5, 4153685), (19, 1093075), (23, 902975), (25, 830737), (95, 218615), (115, 180595), (437, 47525), (475, 43723), (575, 36119), (1901, 10925), (2185, 9505)]