64800080

素因数分解:

$2^4\times 5^1\times {\mathrm{241}}^1\times {\mathrm{3361}}^1$

素因数の和:3615

約数の個数: 40

約数和(自身を含む): 151330344

約数和(自身を除く): 86530264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 241, 482, 964, 1205, 1928, 2410, 3361, 3856, 4820, 6722, 9640, 13444, 16805, 19280, 26888, 33610, 53776, 67220, 134440, 268880, 810001, 1620002, 3240004, 4050005, 6480008, 8100010, 12960016, 16200020, 32400040, 64800080]

約数ペア:

[(1, 64800080), (2, 32400040), (4, 16200020), (5, 12960016), (8, 8100010), (10, 6480008), (16, 4050005), (20, 3240004), (40, 1620002), (80, 810001), (241, 268880), (482, 134440), (964, 67220), (1205, 53776), (1928, 33610), (2410, 26888), (3361, 19280), (3856, 16805), (4820, 13444), (6722, 9640)]