77979278

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{21577}}^1$

素因数の和:21731

約数の個数: 16

約数和(自身を含む): 126878640

約数和(自身を除く): 48899362

約数列:

[1, 2, 13, 26, 139, 278, 1807, 3614, 21577, 43154, 280501, 561002, 2999203, 5998406, 38989639, 77979278]

約数ペア:

[(1, 77979278), (2, 38989639), (13, 5998406), (26, 2999203), (139, 561002), (278, 280501), (1807, 43154), (3614, 21577)]