268105880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{479}}^1\times {\mathrm{1999}}^1$

素因数の和:2496

約数の個数: 64

約数和(自身を含む): 691200000

約数和(自身を除く): 423094120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 479, 958, 1916, 1999, 2395, 3353, 3832, 3998, 4790, 6706, 7996, 9580, 9995, 13412, 13993, 15992, 16765, 19160, 19990, 26824, 27986, 33530, 39980, 55972, 67060, 69965, 79960, 111944, 134120, 139930, 279860, 559720, 957521, 1915042, 3830084, 4787605, 6702647, 7660168, 9575210, 13405294, 19150420, 26810588, 33513235, 38300840, 53621176, 67026470, 134052940, 268105880]

約数ペア:

[(1, 268105880), (2, 134052940), (4, 67026470), (5, 53621176), (7, 38300840), (8, 33513235), (10, 26810588), (14, 19150420), (20, 13405294), (28, 9575210), (35, 7660168), (40, 6702647), (56, 4787605), (70, 3830084), (140, 1915042), (280, 957521), (479, 559720), (958, 279860), (1916, 139930), (1999, 134120), (2395, 111944), (3353, 79960), (3832, 69965), (3998, 67060), (4790, 55972), (6706, 39980), (7996, 33530), (9580, 27986), (9995, 26824), (13412, 19990), (13993, 19160), (15992, 16765)]