25015815

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{521}}^1$

素因数の和:640

約数の個数: 48

約数和(自身を含む): 47882016

約数和(自身を除く): 22866201

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 97, 99, 165, 291, 485, 495, 521, 873, 1067, 1455, 1563, 2605, 3201, 4365, 4689, 5335, 5731, 7815, 9603, 16005, 17193, 23445, 28655, 48015, 50537, 51579, 85965, 151611, 252685, 257895, 454833, 555907, 758055, 1667721, 2274165, 2779535, 5003163, 8338605, 25015815]

約数ペア:

[(1, 25015815), (3, 8338605), (5, 5003163), (9, 2779535), (11, 2274165), (15, 1667721), (33, 758055), (45, 555907), (55, 454833), (97, 257895), (99, 252685), (165, 151611), (291, 85965), (485, 51579), (495, 50537), (521, 48015), (873, 28655), (1067, 23445), (1455, 17193), (1563, 16005), (2605, 9603), (3201, 7815), (4365, 5731), (4689, 5335)]