64292540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{247279}}^1$

素因数の和:247301

約数の個数: 24

約数和(自身を含む): 145400640

約数和(自身を除く): 81108100

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 247279, 494558, 989116, 1236395, 2472790, 3214627, 4945580, 6429254, 12858508, 16073135, 32146270, 64292540]

約数ペア:

[(1, 64292540), (2, 32146270), (4, 16073135), (5, 12858508), (10, 6429254), (13, 4945580), (20, 3214627), (26, 2472790), (52, 1236395), (65, 989116), (130, 494558), (260, 247279)]