209408085

素因数分解:

$3^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{3947}}^1$

素因数の和:4095

約数の個数: 40

約数和(自身を含む): 378344736

約数和(自身を除く): 168936651

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 131, 135, 393, 405, 655, 1179, 1965, 3537, 3947, 5895, 10611, 11841, 17685, 19735, 35523, 53055, 59205, 106569, 177615, 319707, 517057, 532845, 1551171, 1598535, 2585285, 4653513, 7755855, 13960539, 23267565, 41881617, 69802695, 209408085]

約数ペア:

[(1, 209408085), (3, 69802695), (5, 41881617), (9, 23267565), (15, 13960539), (27, 7755855), (45, 4653513), (81, 2585285), (131, 1598535), (135, 1551171), (393, 532845), (405, 517057), (655, 319707), (1179, 177615), (1965, 106569), (3537, 59205), (3947, 53055), (5895, 35523), (10611, 19735), (11841, 17685)]