156693140

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{128437}}^1$

素因数の和:128507

約数の個数: 24

約数和(自身を含む): 334452552

約数和(自身を除く): 177759412

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 128437, 256874, 513748, 642185, 1284370, 2568740, 7834657, 15669314, 31338628, 39173285, 78346570, 156693140]

約数ペア:

[(1, 156693140), (2, 78346570), (4, 39173285), (5, 31338628), (10, 15669314), (20, 7834657), (61, 2568740), (122, 1284370), (244, 642185), (305, 513748), (610, 256874), (1220, 128437)]