164565880

素因数分解:

$2^3\times 5^1\times {\mathrm{977}}^1\times {\mathrm{4211}}^1$

素因数の和:5199

約数の個数: 32

約数和(自身を含む): 370740240

約数和(自身を除く): 206174360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 977, 1954, 3908, 4211, 4885, 7816, 8422, 9770, 16844, 19540, 21055, 33688, 39080, 42110, 84220, 168440, 4114147, 8228294, 16456588, 20570735, 32913176, 41141470, 82282940, 164565880]

約数ペア:

[(1, 164565880), (2, 82282940), (4, 41141470), (5, 32913176), (8, 20570735), (10, 16456588), (20, 8228294), (40, 4114147), (977, 168440), (1954, 84220), (3908, 42110), (4211, 39080), (4885, 33688), (7816, 21055), (8422, 19540), (9770, 16844)]