67890405

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{1601}}^1$

素因数の和:1877

約数の個数: 32

約数和(自身を含む): 119035008

約数和(自身を除く): 51144603

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 257, 771, 1285, 1601, 2827, 3855, 4803, 8005, 8481, 14135, 17611, 24015, 42405, 52833, 88055, 264165, 411457, 1234371, 2057285, 4526027, 6171855, 13578081, 22630135, 67890405]

約数ペア:

[(1, 67890405), (3, 22630135), (5, 13578081), (11, 6171855), (15, 4526027), (33, 2057285), (55, 1234371), (165, 411457), (257, 264165), (771, 88055), (1285, 52833), (1601, 42405), (2827, 24015), (3855, 17611), (4803, 14135), (8005, 8481)]