20815776325

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{402043}}^1$

素因数の和:402181

約数の個数: 24

約数和(自身を含む): 27419400800

約数和(自身を除く): 6603624475

約数列:

[1, 5, 19, 25, 95, 109, 475, 545, 2071, 2725, 10355, 51775, 402043, 2010215, 7638817, 10051075, 38194085, 43822687, 190970425, 219113435, 832631053, 1095567175, 4163155265, 20815776325]

約数ペア:

[(1, 20815776325), (5, 4163155265), (19, 1095567175), (25, 832631053), (95, 219113435), (109, 190970425), (475, 43822687), (545, 38194085), (2071, 10051075), (2725, 7638817), (10355, 2010215), (51775, 402043)]