81458260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{313301}}^1$

素因数の和:313323

約数の個数: 24

約数和(自身を含む): 184221576

約数和(自身を除く): 102763316

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 313301, 626602, 1253204, 1566505, 3133010, 4072913, 6266020, 8145826, 16291652, 20364565, 40729130, 81458260]

約数ペア:

[(1, 81458260), (2, 40729130), (4, 20364565), (5, 16291652), (10, 8145826), (13, 6266020), (20, 4072913), (26, 3133010), (52, 1566505), (65, 1253204), (130, 626602), (260, 313301)]