640113306

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{802147}}^1$

素因数の和:802178

約数の個数: 32

約数和(自身を含む): 1540124160

約数和(自身を除く): 900010854

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 114, 133, 266, 399, 798, 802147, 1604294, 2406441, 4812882, 5615029, 11230058, 15240793, 16845087, 30481586, 33690174, 45722379, 91444758, 106685551, 213371102, 320056653, 640113306]

約数ペア:

[(1, 640113306), (2, 320056653), (3, 213371102), (6, 106685551), (7, 91444758), (14, 45722379), (19, 33690174), (21, 30481586), (38, 16845087), (42, 15240793), (57, 11230058), (114, 5615029), (133, 4812882), (266, 2406441), (399, 1604294), (798, 802147)]