1281968

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{4217}}^1$

素因数の和:4244

約数の個数: 20

約数和(自身を含む): 2615160

約数和(自身を除く): 1333192

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 4217, 8434, 16868, 33736, 67472, 80123, 160246, 320492, 640984, 1281968]

約数ペア:

[(1, 1281968), (2, 640984), (4, 320492), (8, 160246), (16, 80123), (19, 67472), (38, 33736), (76, 16868), (152, 8434), (304, 4217)]