81523910

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{48239}}^1$

素因数の和:48272

約数の個数: 24

約数和(自身を含む): 158902560

約数和(自身を除く): 77378650

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 48239, 96478, 241195, 482390, 627107, 1254214, 3135535, 6271070, 8152391, 16304782, 40761955, 81523910]

約数ペア:

[(1, 81523910), (2, 40761955), (5, 16304782), (10, 8152391), (13, 6271070), (26, 3135535), (65, 1254214), (130, 627107), (169, 482390), (338, 241195), (845, 96478), (1690, 48239)]