127639408

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{613651}}^1$

素因数の和:613672

約数の個数: 20

約数和(自身を含む): 266324968

約数和(自身を除く): 138685560

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 613651, 1227302, 2454604, 4909208, 7977463, 9818416, 15954926, 31909852, 63819704, 127639408]

約数ペア:

[(1, 127639408), (2, 63819704), (4, 31909852), (8, 15954926), (13, 9818416), (16, 7977463), (26, 4909208), (52, 2454604), (104, 1227302), (208, 613651)]