1280971810

素因数分解:

$2^1\times 5^1\times {\mathrm{1489}}^1\times {\mathrm{86029}}^1$

素因数の和:87525

約数の個数: 16

約数和(自身を含む): 2307324600

約数和(自身を除く): 1026352790

約数列:

[1, 2, 5, 10, 1489, 2978, 7445, 14890, 86029, 172058, 430145, 860290, 128097181, 256194362, 640485905, 1280971810]

約数ペア:

[(1, 1280971810), (2, 640485905), (5, 256194362), (10, 128097181), (1489, 860290), (2978, 430145), (7445, 172058), (14890, 86029)]