289911080

素因数分解:

$2^3\times 5^1\times {\mathrm{541}}^1\times {\mathrm{13397}}^1$

素因数の和:13949

約数の個数: 32

約数和(自身を含む): 653554440

約数和(自身を除く): 363643360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 541, 1082, 2164, 2705, 4328, 5410, 10820, 13397, 21640, 26794, 53588, 66985, 107176, 133970, 267940, 535880, 7247777, 14495554, 28991108, 36238885, 57982216, 72477770, 144955540, 289911080]

約数ペア:

[(1, 289911080), (2, 144955540), (4, 72477770), (5, 57982216), (8, 36238885), (10, 28991108), (20, 14495554), (40, 7247777), (541, 535880), (1082, 267940), (2164, 133970), (2705, 107176), (4328, 66985), (5410, 53588), (10820, 26794), (13397, 21640)]