19209580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73883}}^1$

素因数の和:73905

約数の個数: 24

約数和(自身を含む): 43443792

約数和(自身を除く): 24234212

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 73883, 147766, 295532, 369415, 738830, 960479, 1477660, 1920958, 3841916, 4802395, 9604790, 19209580]

約数ペア:

[(1, 19209580), (2, 9604790), (4, 4802395), (5, 3841916), (10, 1920958), (13, 1477660), (20, 960479), (26, 738830), (52, 369415), (65, 295532), (130, 147766), (260, 73883)]