28329405

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{1109}}^1$

素因数の和:1261

約数の個数: 32

約数和(自身を含む): 49230720

約数和(自身を除く): 20901315

約数列:

[1, 3, 5, 13, 15, 39, 65, 131, 195, 393, 655, 1109, 1703, 1965, 3327, 5109, 5545, 8515, 14417, 16635, 25545, 43251, 72085, 145279, 216255, 435837, 726395, 1888627, 2179185, 5665881, 9443135, 28329405]

約数ペア:

[(1, 28329405), (3, 9443135), (5, 5665881), (13, 2179185), (15, 1888627), (39, 726395), (65, 435837), (131, 216255), (195, 145279), (393, 72085), (655, 43251), (1109, 25545), (1703, 16635), (1965, 14417), (3327, 8515), (5109, 5545)]