166671280

素因数分解:

$2^4\times 5^1\times {\mathrm{541}}^1\times {\mathrm{3851}}^1$

素因数の和:4405

約数の個数: 40

約数和(自身を含む): 388327824

約数和(自身を除く): 221656544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 541, 1082, 2164, 2705, 3851, 4328, 5410, 7702, 8656, 10820, 15404, 19255, 21640, 30808, 38510, 43280, 61616, 77020, 154040, 308080, 2083391, 4166782, 8333564, 10416955, 16667128, 20833910, 33334256, 41667820, 83335640, 166671280]

約数ペア:

[(1, 166671280), (2, 83335640), (4, 41667820), (5, 33334256), (8, 20833910), (10, 16667128), (16, 10416955), (20, 8333564), (40, 4166782), (80, 2083391), (541, 308080), (1082, 154040), (2164, 77020), (2705, 61616), (3851, 43280), (4328, 38510), (5410, 30808), (7702, 21640), (8656, 19255), (10820, 15404)]