199651905

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{277}}^1\times {\mathrm{281}}^1$

素因数の和:591

約数の個数: 64

約数和(自身を含む): 376300800

約数和(自身を除く): 176648895

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 95, 135, 171, 277, 281, 285, 513, 831, 843, 855, 1385, 1405, 2493, 2529, 2565, 4155, 4215, 5263, 5339, 7479, 7587, 12465, 12645, 15789, 16017, 26315, 26695, 37395, 37935, 47367, 48051, 77837, 78945, 80085, 142101, 144153, 233511, 236835, 240255, 389185, 700533, 710505, 720765, 1167555, 1478903, 2101599, 3502665, 4436709, 7394515, 10507995, 13310127, 22183545, 39930381, 66550635, 199651905]

約数ペア:

[(1, 199651905), (3, 66550635), (5, 39930381), (9, 22183545), (15, 13310127), (19, 10507995), (27, 7394515), (45, 4436709), (57, 3502665), (95, 2101599), (135, 1478903), (171, 1167555), (277, 720765), (281, 710505), (285, 700533), (513, 389185), (831, 240255), (843, 236835), (855, 233511), (1385, 144153), (1405, 142101), (2493, 80085), (2529, 78945), (2565, 77837), (4155, 48051), (4215, 47367), (5263, 37935), (5339, 37395), (7479, 26695), (7587, 26315), (12465, 16017), (12645, 15789)]