261892015

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{97177}}^1$

素因数の和:97207

約数の個数: 24

約数和(自身を含む): 398818512

約数和(自身を除く): 136926497

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 245, 385, 539, 2695, 97177, 485885, 680239, 1068947, 3401195, 4761673, 5344735, 7482629, 23808365, 37413145, 52378403, 261892015]

約数ペア:

[(1, 261892015), (5, 52378403), (7, 37413145), (11, 23808365), (35, 7482629), (49, 5344735), (55, 4761673), (77, 3401195), (245, 1068947), (385, 680239), (539, 485885), (2695, 97177)]