19520215

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1187}}^1$

素因数の和:1239

約数の個数: 32

約数和(自身を含む): 28740096

約数和(自身を除く): 9219881

約数列:

[1, 5, 11, 13, 23, 55, 65, 115, 143, 253, 299, 715, 1187, 1265, 1495, 3289, 5935, 13057, 15431, 16445, 27301, 65285, 77155, 136505, 169741, 300311, 354913, 848705, 1501555, 1774565, 3904043, 19520215]

約数ペア:

[(1, 19520215), (5, 3904043), (11, 1774565), (13, 1501555), (23, 848705), (55, 354913), (65, 300311), (115, 169741), (143, 136505), (253, 77155), (299, 65285), (715, 27301), (1187, 16445), (1265, 15431), (1495, 13057), (3289, 5935)]