2780780

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{853}}^1$

素因数の和:1025

約数の個数: 24

約数和(自身を含む): 5882352

約数和(自身を除く): 3101572

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 853, 1630, 1706, 3260, 3412, 4265, 8530, 17060, 139039, 278078, 556156, 695195, 1390390, 2780780]

約数ペア:

[(1, 2780780), (2, 1390390), (4, 695195), (5, 556156), (10, 278078), (20, 139039), (163, 17060), (326, 8530), (652, 4265), (815, 3412), (853, 3260), (1630, 1706)]