20818330

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{160141}}^1$

素因数の和:160161

約数の個数: 16

約数和(自身を含む): 40355784

約数和(自身を除く): 19537454

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 160141, 320282, 800705, 1601410, 2081833, 4163666, 10409165, 20818330]

約数ペア:

[(1, 20818330), (2, 10409165), (5, 4163666), (10, 2081833), (13, 1601410), (26, 800705), (65, 320282), (130, 160141)]