28904135

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{6637}}^1$

素因数の和:6722

約数の個数: 16

約数和(自身を含む): 37916256

約数和(自身を除く): 9012121

約数列:

[1, 5, 13, 65, 67, 335, 871, 4355, 6637, 33185, 86281, 431405, 444679, 2223395, 5780827, 28904135]

約数ペア:

[(1, 28904135), (5, 5780827), (13, 2223395), (65, 444679), (67, 431405), (335, 86281), (871, 33185), (4355, 6637)]