128454896

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{422549}}^1$

素因数の和:422576

約数の個数: 20

約数和(自身を含む): 261981000

約数和(自身を除く): 133526104

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 422549, 845098, 1690196, 3380392, 6760784, 8028431, 16056862, 32113724, 64227448, 128454896]

約数ペア:

[(1, 128454896), (2, 64227448), (4, 32113724), (8, 16056862), (16, 8028431), (19, 6760784), (38, 3380392), (76, 1690196), (152, 845098), (304, 422549)]