1285102780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4942703}}^1$

素因数の和:4942725

約数の個数: 24

約数和(自身を含む): 2906309952

約数和(自身を除く): 1621207172

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 4942703, 9885406, 19770812, 24713515, 49427030, 64255139, 98854060, 128510278, 257020556, 321275695, 642551390, 1285102780]

約数ペア:

[(1, 1285102780), (2, 642551390), (4, 321275695), (5, 257020556), (10, 128510278), (13, 98854060), (20, 64255139), (26, 49427030), (52, 24713515), (65, 19770812), (130, 9885406), (260, 4942703)]