639919678

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{193}}^1\times {\mathrm{863}}^1$

素因数の和:1188

約数の個数: 32

約数和(自身を含む): 1031844096

約数和(自身を除く): 391924418

約数列:

[1, 2, 17, 34, 113, 193, 226, 386, 863, 1726, 1921, 3281, 3842, 6562, 14671, 21809, 29342, 43618, 97519, 166559, 195038, 333118, 370753, 741506, 1657823, 2831503, 3315646, 5663006, 18821167, 37642334, 319959839, 639919678]

約数ペア:

[(1, 639919678), (2, 319959839), (17, 37642334), (34, 18821167), (113, 5663006), (193, 3315646), (226, 2831503), (386, 1657823), (863, 741506), (1726, 370753), (1921, 333118), (3281, 195038), (3842, 166559), (6562, 97519), (14671, 43618), (21809, 29342)]