2784405

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1$

素因数の和:261

約数の個数: 32

約数和(自身を含む): 4878720

約数和(自身を除く): 2094315

約数列:

[1, 3, 5, 13, 15, 39, 65, 109, 131, 195, 327, 393, 545, 655, 1417, 1635, 1703, 1965, 4251, 5109, 7085, 8515, 14279, 21255, 25545, 42837, 71395, 185627, 214185, 556881, 928135, 2784405]

約数ペア:

[(1, 2784405), (3, 928135), (5, 556881), (13, 214185), (15, 185627), (39, 71395), (65, 42837), (109, 25545), (131, 21255), (195, 14279), (327, 8515), (393, 7085), (545, 5109), (655, 4251), (1417, 1965), (1635, 1703)]