131118345

素因数分解:

$3^4\times 5^1\times {\mathrm{421}}^1\times {\mathrm{769}}^1$

素因数の和:1207

約数の個数: 40

約数和(自身を含む): 235906440

約数和(自身を除く): 104788095

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 421, 769, 1263, 2105, 2307, 3789, 3845, 6315, 6921, 11367, 11535, 18945, 20763, 34101, 34605, 56835, 62289, 103815, 170505, 311445, 323749, 971247, 1618745, 2913741, 4856235, 8741223, 14568705, 26223669, 43706115, 131118345]

約数ペア:

[(1, 131118345), (3, 43706115), (5, 26223669), (9, 14568705), (15, 8741223), (27, 4856235), (45, 2913741), (81, 1618745), (135, 971247), (405, 323749), (421, 311445), (769, 170505), (1263, 103815), (2105, 62289), (2307, 56835), (3789, 34605), (3845, 34101), (6315, 20763), (6921, 18945), (11367, 11535)]