64278064

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{211441}}^1$

素因数の和:211468

約数の個数: 20

約数和(自身を含む): 131094040

約数和(自身を除く): 66815976

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 211441, 422882, 845764, 1691528, 3383056, 4017379, 8034758, 16069516, 32139032, 64278064]

約数ペア:

[(1, 64278064), (2, 32139032), (4, 16069516), (8, 8034758), (16, 4017379), (19, 3383056), (38, 1691528), (76, 845764), (152, 422882), (304, 211441)]