19540208

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{199}}^1$

素因数の和:262

約数の個数: 60

約数和(自身を含む): 42519600

約数和(自身を除く): 22979392

約数列:

[1, 2, 4, 8, 16, 17, 19, 34, 38, 68, 76, 136, 152, 199, 272, 304, 323, 361, 398, 646, 722, 796, 1292, 1444, 1592, 2584, 2888, 3184, 3383, 3781, 5168, 5776, 6137, 6766, 7562, 12274, 13532, 15124, 24548, 27064, 30248, 49096, 54128, 60496, 64277, 71839, 98192, 128554, 143678, 257108, 287356, 514216, 574712, 1028432, 1149424, 1221263, 2442526, 4885052, 9770104, 19540208]

約数ペア:

[(1, 19540208), (2, 9770104), (4, 4885052), (8, 2442526), (16, 1221263), (17, 1149424), (19, 1028432), (34, 574712), (38, 514216), (68, 287356), (76, 257108), (136, 143678), (152, 128554), (199, 98192), (272, 71839), (304, 64277), (323, 60496), (361, 54128), (398, 49096), (646, 30248), (722, 27064), (796, 24548), (1292, 15124), (1444, 13532), (1592, 12274), (2584, 7562), (2888, 6766), (3184, 6137), (3383, 5776), (3781, 5168)]