64721605

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{3967}}^1$

素因数の和:4236

約数の個数: 16

約数和(自身を含む): 83994624

約数和(自身を除く): 19273019

約数列:

[1, 5, 13, 65, 251, 1255, 3263, 3967, 16315, 19835, 51571, 257855, 995717, 4978585, 12944321, 64721605]

約数ペア:

[(1, 64721605), (5, 12944321), (13, 4978585), (65, 995717), (251, 257855), (1255, 51571), (3263, 19835), (3967, 16315)]