257130797

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{5309}}^1$

素因数の和:5381

約数の個数: 32

約数和(自身を含む): 348675840

約数和(自身を除く): 91545043

約数列:

[1, 7, 11, 17, 37, 77, 119, 187, 259, 407, 629, 1309, 2849, 4403, 5309, 6919, 37163, 48433, 58399, 90253, 196433, 408793, 631771, 992783, 1375031, 2160763, 3339361, 6949481, 15125341, 23375527, 36732971, 257130797]

約数ペア:

[(1, 257130797), (7, 36732971), (11, 23375527), (17, 15125341), (37, 6949481), (77, 3339361), (119, 2160763), (187, 1375031), (259, 992783), (407, 631771), (629, 408793), (1309, 196433), (2849, 90253), (4403, 58399), (5309, 48433), (6919, 37163)]