6978140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{26839}}^1$

素因数の和:26861

約数の個数: 24

約数和(自身を含む): 15781920

約数和(自身を除く): 8803780

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 26839, 53678, 107356, 134195, 268390, 348907, 536780, 697814, 1395628, 1744535, 3489070, 6978140]

約数ペア:

[(1, 6978140), (2, 3489070), (4, 1744535), (5, 1395628), (10, 697814), (13, 536780), (20, 348907), (26, 268390), (52, 134195), (65, 107356), (130, 53678), (260, 26839)]