81123910

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{165559}}^1$

素因数の和:165580

約数の個数: 24

約数和(自身を含む): 169864560

約数和(自身を除く): 88740650

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 165559, 331118, 827795, 1158913, 1655590, 2317826, 5794565, 8112391, 11589130, 16224782, 40561955, 81123910]

約数ペア:

[(1, 81123910), (2, 40561955), (5, 16224782), (7, 11589130), (10, 8112391), (14, 5794565), (35, 2317826), (49, 1655590), (70, 1158913), (98, 827795), (245, 331118), (490, 165559)]