164901620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{634237}}^1$

素因数の和:634259

約数の個数: 24

約数和(自身を含む): 372931944

約数和(自身を除く): 208030324

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 634237, 1268474, 2536948, 3171185, 6342370, 8245081, 12684740, 16490162, 32980324, 41225405, 82450810, 164901620]

約数ペア:

[(1, 164901620), (2, 82450810), (4, 41225405), (5, 32980324), (10, 16490162), (13, 12684740), (20, 8245081), (26, 6342370), (52, 3171185), (65, 2536948), (130, 1268474), (260, 634237)]