20409130

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{291559}}^1$

素因数の和:291573

約数の個数: 16

約数和(自身を含む): 41984640

約数和(自身を除く): 21575510

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 291559, 583118, 1457795, 2040913, 2915590, 4081826, 10204565, 20409130]

約数ペア:

[(1, 20409130), (2, 10204565), (5, 4081826), (7, 2915590), (10, 2040913), (14, 1457795), (35, 583118), (70, 291559)]