278642806

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{20107}}^1$

素因数の和:20176

約数の個数: 24

約数和(自身を含む): 463650264

約数和(自身を除く): 185007458

約数列:

[1, 2, 13, 26, 41, 82, 169, 338, 533, 1066, 6929, 13858, 20107, 40214, 261391, 522782, 824387, 1648774, 3398083, 6796166, 10717031, 21434062, 139321403, 278642806]

約数ペア:

[(1, 278642806), (2, 139321403), (13, 21434062), (26, 10717031), (41, 6796166), (82, 3398083), (169, 1648774), (338, 824387), (533, 522782), (1066, 261391), (6929, 40214), (13858, 20107)]