16871080

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{2141}}^1$

素因数の和:2349

約数の個数: 32

約数和(自身を含む): 38170440

約数和(自身を除く): 21299360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 2141, 3940, 4282, 7880, 8564, 10705, 17128, 21410, 42820, 85640, 421777, 843554, 1687108, 2108885, 3374216, 4217770, 8435540, 16871080]

約数ペア:

[(1, 16871080), (2, 8435540), (4, 4217770), (5, 3374216), (8, 2108885), (10, 1687108), (20, 843554), (40, 421777), (197, 85640), (394, 42820), (788, 21410), (985, 17128), (1576, 10705), (1970, 8564), (2141, 7880), (3940, 4282)]