66556048

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{319981}}^1$

素因数の和:320002

約数の個数: 20

約数和(自身を含む): 138872188

約数和(自身を除く): 72316140

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 319981, 639962, 1279924, 2559848, 4159753, 5119696, 8319506, 16639012, 33278024, 66556048]

約数ペア:

[(1, 66556048), (2, 33278024), (4, 16639012), (8, 8319506), (13, 5119696), (16, 4159753), (26, 2559848), (52, 1279924), (104, 639962), (208, 319981)]