20493070

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157639}}^1$

素因数の和:157659

約数の個数: 16

約数和(自身を含む): 39725280

約数和(自身を除く): 19232210

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 157639, 315278, 788195, 1576390, 2049307, 4098614, 10246535, 20493070]

約数ペア:

[(1, 20493070), (2, 10246535), (5, 4098614), (10, 2049307), (13, 1576390), (26, 788195), (65, 315278), (130, 157639)]