64999964

素因数分解:

$2^2\times {\mathrm{101}}^1\times {\mathrm{251}}^1\times {\mathrm{641}}^1$

素因数の和:997

約数の個数: 24

約数和(自身を含む): 115513776

約数和(自身を除く): 50513812

約数列:

[1, 2, 4, 101, 202, 251, 404, 502, 641, 1004, 1282, 2564, 25351, 50702, 64741, 101404, 129482, 160891, 258964, 321782, 643564, 16249991, 32499982, 64999964]

約数ペア:

[(1, 64999964), (2, 32499982), (4, 16249991), (101, 643564), (202, 321782), (251, 258964), (404, 160891), (502, 129482), (641, 101404), (1004, 64741), (1282, 50702), (2564, 25351)]