398732008

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{43759}}^1$

素因数の和:43849

約数の個数: 32

約数和(自身を含む): 803433600

約数和(自身を除く): 404701592

約数列:

[1, 2, 4, 8, 17, 34, 67, 68, 134, 136, 268, 536, 1139, 2278, 4556, 9112, 43759, 87518, 175036, 350072, 743903, 1487806, 2931853, 2975612, 5863706, 5951224, 11727412, 23454824, 49841501, 99683002, 199366004, 398732008]

約数ペア:

[(1, 398732008), (2, 199366004), (4, 99683002), (8, 49841501), (17, 23454824), (34, 11727412), (67, 5951224), (68, 5863706), (134, 2975612), (136, 2931853), (268, 1487806), (536, 743903), (1139, 350072), (2278, 175036), (4556, 87518), (9112, 43759)]