208720016

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{40387}}^1$

素因数の和:40431

約数の個数: 40

約数和(自身を含む): 450730080

約数和(自身を除く): 242010064

約数列:

[1, 2, 4, 8, 16, 17, 19, 34, 38, 68, 76, 136, 152, 272, 304, 323, 646, 1292, 2584, 5168, 40387, 80774, 161548, 323096, 646192, 686579, 767353, 1373158, 1534706, 2746316, 3069412, 5492632, 6138824, 10985264, 12277648, 13045001, 26090002, 52180004, 104360008, 208720016]

約数ペア:

[(1, 208720016), (2, 104360008), (4, 52180004), (8, 26090002), (16, 13045001), (17, 12277648), (19, 10985264), (34, 6138824), (38, 5492632), (68, 3069412), (76, 2746316), (136, 1534706), (152, 1373158), (272, 767353), (304, 686579), (323, 646192), (646, 323096), (1292, 161548), (2584, 80774), (5168, 40387)]