1280490915

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{456503}}^1$

素因数の和:456539

約数の個数: 32

約数和(自身を含む): 2366516736

約数和(自身を除く): 1086025821

約数列:

[1, 3, 5, 11, 15, 17, 33, 51, 55, 85, 165, 187, 255, 561, 935, 2805, 456503, 1369509, 2282515, 5021533, 6847545, 7760551, 15064599, 23281653, 25107665, 38802755, 75322995, 85366061, 116408265, 256098183, 426830305, 1280490915]

約数ペア:

[(1, 1280490915), (3, 426830305), (5, 256098183), (11, 116408265), (15, 85366061), (17, 75322995), (33, 38802755), (51, 25107665), (55, 23281653), (85, 15064599), (165, 7760551), (187, 6847545), (255, 5021533), (561, 2282515), (935, 1369509), (2805, 456503)]