1278293666

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2587639}}^1$

素因数の和:2587673

約数の個数: 16

約数和(自身を含む): 2173617600

約数和(自身を除く): 895323934

約数列:

[1, 2, 13, 19, 26, 38, 247, 494, 2587639, 5175278, 33639307, 49165141, 67278614, 98330282, 639146833, 1278293666]

約数ペア:

[(1, 1278293666), (2, 639146833), (13, 98330282), (19, 67278614), (26, 49165141), (38, 33639307), (247, 5175278), (494, 2587639)]