81874832

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{393629}}^1$

素因数の和:393650

約数の個数: 20

約数和(自身を含む): 170835420

約数和(自身を除く): 88960588

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 393629, 787258, 1574516, 3149032, 5117177, 6298064, 10234354, 20468708, 40937416, 81874832]

約数ペア:

[(1, 81874832), (2, 40937416), (4, 20468708), (8, 10234354), (13, 6298064), (16, 5117177), (26, 3149032), (52, 1574516), (104, 787258), (208, 393629)]