278320666

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{345311}}^1$

素因数の和:345357

約数の個数: 16

約数和(自身を含む): 464099328

約数和(自身を除く): 185778662

約数列:

[1, 2, 13, 26, 31, 62, 403, 806, 345311, 690622, 4489043, 8978086, 10704641, 21409282, 139160333, 278320666]

約数ペア:

[(1, 278320666), (2, 139160333), (13, 21409282), (26, 10704641), (31, 8978086), (62, 4489043), (403, 690622), (806, 345311)]