80931025

素因数分解:

$5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{431}}^1$

素因数の和:514

約数の個数: 48

約数和(自身を含む): 122135040

約数和(自身を除く): 41204015

約数列:

[1, 5, 7, 25, 29, 35, 37, 145, 175, 185, 203, 259, 431, 725, 925, 1015, 1073, 1295, 2155, 3017, 5075, 5365, 6475, 7511, 10775, 12499, 15085, 15947, 26825, 37555, 62495, 75425, 79735, 87493, 111629, 187775, 312475, 398675, 437465, 462463, 558145, 2187325, 2312315, 2790725, 3237241, 11561575, 16186205, 80931025]

約数ペア:

[(1, 80931025), (5, 16186205), (7, 11561575), (25, 3237241), (29, 2790725), (35, 2312315), (37, 2187325), (145, 558145), (175, 462463), (185, 437465), (203, 398675), (259, 312475), (431, 187775), (725, 111629), (925, 87493), (1015, 79735), (1073, 75425), (1295, 62495), (2155, 37555), (3017, 26825), (5075, 15947), (5365, 15085), (6475, 12499), (7511, 10775)]