261334690

素因数分解:

$2^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{349}}^1\times {\mathrm{727}}^1$

素因数の和:1186

約数の個数: 32

約数和(自身を含む): 476985600

約数和(自身を除く): 215650910

約数列:

[1, 2, 5, 10, 103, 206, 349, 515, 698, 727, 1030, 1454, 1745, 3490, 3635, 7270, 35947, 71894, 74881, 149762, 179735, 253723, 359470, 374405, 507446, 748810, 1268615, 2537230, 26133469, 52266938, 130667345, 261334690]

約数ペア:

[(1, 261334690), (2, 130667345), (5, 52266938), (10, 26133469), (103, 2537230), (206, 1268615), (349, 748810), (515, 507446), (698, 374405), (727, 359470), (1030, 253723), (1454, 179735), (1745, 149762), (3490, 74881), (3635, 71894), (7270, 35947)]