129128533456

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{620810257}}^1$

素因数の和:620810278

約数の個数: 20

約数和(自身を含む): 269431651972

約数和(自身を除く): 140303118516

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 620810257, 1241620514, 2483241028, 4966482056, 8070533341, 9932964112, 16141066682, 32282133364, 64564266728, 129128533456]

約数ペア:

[(1, 129128533456), (2, 64564266728), (4, 32282133364), (8, 16141066682), (13, 9932964112), (16, 8070533341), (26, 4966482056), (52, 2483241028), (104, 1241620514), (208, 620810257)]