20347210

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{557}}^1$

素因数の和:858

約数の個数: 32

約数和(自身を含む): 39653712

約数和(自身を除く): 19306502

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 281, 557, 562, 1114, 1405, 2785, 2810, 3653, 5570, 7241, 7306, 14482, 18265, 36205, 36530, 72410, 156517, 313034, 782585, 1565170, 2034721, 4069442, 10173605, 20347210]

約数ペア:

[(1, 20347210), (2, 10173605), (5, 4069442), (10, 2034721), (13, 1565170), (26, 782585), (65, 313034), (130, 156517), (281, 72410), (557, 36530), (562, 36205), (1114, 18265), (1405, 14482), (2785, 7306), (2810, 7241), (3653, 5570)]