2581865

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1$

素因数の和:209

約数の個数: 32

約数和(自身を含む): 3822336

約数和(自身を除く): 1240471

約数列:

[1, 5, 11, 13, 23, 55, 65, 115, 143, 157, 253, 299, 715, 785, 1265, 1495, 1727, 2041, 3289, 3611, 8635, 10205, 16445, 18055, 22451, 39721, 46943, 112255, 198605, 234715, 516373, 2581865]

約数ペア:

[(1, 2581865), (5, 516373), (11, 234715), (13, 198605), (23, 112255), (55, 46943), (65, 39721), (115, 22451), (143, 18055), (157, 16445), (253, 10205), (299, 8635), (715, 3611), (785, 3289), (1265, 2041), (1495, 1727)]