66710540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{256579}}^1$

素因数の和:256601

約数の個数: 24

約数和(自身を含む): 150869040

約数和(自身を除く): 84158500

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 256579, 513158, 1026316, 1282895, 2565790, 3335527, 5131580, 6671054, 13342108, 16677635, 33355270, 66710540]

約数ペア:

[(1, 66710540), (2, 33355270), (4, 16677635), (5, 13342108), (10, 6671054), (13, 5131580), (20, 3335527), (26, 2565790), (52, 1282895), (65, 1026316), (130, 513158), (260, 256579)]