1285679590

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9889843}}^1$

素因数の和:9889863

約数の個数: 16

約数和(自身を含む): 2492240688

約数和(自身を除く): 1206561098

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 9889843, 19779686, 49449215, 98898430, 128567959, 257135918, 642839795, 1285679590]

約数ペア:

[(1, 1285679590), (2, 642839795), (5, 257135918), (10, 128567959), (13, 98898430), (26, 49449215), (65, 19779686), (130, 9889843)]