64894895

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{173}}^1\times {\mathrm{199}}^1$

素因数の和:419

約数の個数: 32

約数和(自身を含む): 87696000

約数和(自身を除く): 22801105

約数列:

[1, 5, 13, 29, 65, 145, 173, 199, 377, 865, 995, 1885, 2249, 2587, 5017, 5771, 11245, 12935, 25085, 28855, 34427, 65221, 75023, 172135, 326105, 375115, 447551, 998383, 2237755, 4991915, 12978979, 64894895]

約数ペア:

[(1, 64894895), (5, 12978979), (13, 4991915), (29, 2237755), (65, 998383), (145, 447551), (173, 375115), (199, 326105), (377, 172135), (865, 75023), (995, 65221), (1885, 34427), (2249, 28855), (2587, 25085), (5017, 12935), (5771, 11245)]