71733080

素因数分解:

$2^3\times 5^1\times {\mathrm{643}}^1\times {\mathrm{2789}}^1$

素因数の和:3443

約数の個数: 32

約数和(自身を含む): 161708400

約数和(自身を除く): 89975320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 643, 1286, 2572, 2789, 3215, 5144, 5578, 6430, 11156, 12860, 13945, 22312, 25720, 27890, 55780, 111560, 1793327, 3586654, 7173308, 8966635, 14346616, 17933270, 35866540, 71733080]

約数ペア:

[(1, 71733080), (2, 35866540), (4, 17933270), (5, 14346616), (8, 8966635), (10, 7173308), (20, 3586654), (40, 1793327), (643, 111560), (1286, 55780), (2572, 27890), (2789, 25720), (3215, 22312), (5144, 13945), (5578, 12860), (6430, 11156)]