19929650

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{30661}}^1$

素因数の和:30686

約数の個数: 24

約数和(自身を含む): 39921924

約数和(自身を除く): 19992274

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 30661, 61322, 153305, 306610, 398593, 766525, 797186, 1533050, 1992965, 3985930, 9964825, 19929650]

約数ペア:

[(1, 19929650), (2, 9964825), (5, 3985930), (10, 1992965), (13, 1533050), (25, 797186), (26, 766525), (50, 398593), (65, 306610), (130, 153305), (325, 61322), (650, 30661)]