131662180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{506393}}^1$

素因数の和:506415

約数の個数: 24

約数和(自身を含む): 297759672

約数和(自身を除く): 166097492

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 506393, 1012786, 2025572, 2531965, 5063930, 6583109, 10127860, 13166218, 26332436, 32915545, 65831090, 131662180]

約数ペア:

[(1, 131662180), (2, 65831090), (4, 32915545), (5, 26332436), (10, 13166218), (13, 10127860), (20, 6583109), (26, 5063930), (52, 2531965), (65, 2025572), (130, 1012786), (260, 506393)]