1280498896

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{2581651}}^1$

素因数の和:2581690

約数の個数: 20

約数和(自身を含む): 2560998784

約数和(自身を除く): 1280499888

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 2581651, 5163302, 10326604, 20653208, 41306416, 80031181, 160062362, 320124724, 640249448, 1280498896]

約数ペア:

[(1, 1280498896), (2, 640249448), (4, 320124724), (8, 160062362), (16, 80031181), (31, 41306416), (62, 20653208), (124, 10326604), (248, 5163302), (496, 2581651)]