2005759725

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{621941}}^1$

素因数の和:621997

約数の個数: 24

約数和(自身を含む): 3393315552

約数和(自身を除く): 1387555827

約数列:

[1, 3, 5, 15, 25, 43, 75, 129, 215, 645, 1075, 3225, 621941, 1865823, 3109705, 9329115, 15548525, 26743463, 46645575, 80230389, 133717315, 401151945, 668586575, 2005759725]

約数ペア:

[(1, 2005759725), (3, 668586575), (5, 401151945), (15, 133717315), (25, 80230389), (43, 46645575), (75, 26743463), (129, 15548525), (215, 9329115), (645, 3109705), (1075, 1865823), (3225, 621941)]