172810280

素因数分解:

$2^3\times 5^1\times {\mathrm{4320257}}^1$

素因数の和:4320268

約数の個数: 16

約数和(自身を含む): 388823220

約数和(自身を除く): 216012940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4320257, 8640514, 17281028, 21601285, 34562056, 43202570, 86405140, 172810280]

約数ペア:

[(1, 172810280), (2, 86405140), (4, 43202570), (5, 34562056), (8, 21601285), (10, 17281028), (20, 8640514), (40, 4320257)]