64442860

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{38821}}^1$

素因数の和:38913

約数の個数: 24

約数和(自身を含む): 136964016

約数和(自身を除く): 72521156

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 38821, 77642, 155284, 194105, 388210, 776420, 3222143, 6444286, 12888572, 16110715, 32221430, 64442860]

約数ペア:

[(1, 64442860), (2, 32221430), (4, 16110715), (5, 12888572), (10, 6444286), (20, 3222143), (83, 776420), (166, 388210), (332, 194105), (415, 155284), (830, 77642), (1660, 38821)]