1280638

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{503}}^1$

素因数の和:591

約数の個数: 16

約数和(自身を含む): 2056320

約数和(自身を除く): 775682

約数列:

[1, 2, 19, 38, 67, 134, 503, 1006, 1273, 2546, 9557, 19114, 33701, 67402, 640319, 1280638]

約数ペア:

[(1, 1280638), (2, 640319), (19, 67402), (38, 33701), (67, 19114), (134, 9557), (503, 2546), (1006, 1273)]