128977278

素因数分解:

$2^1\times 3^1\times {\mathrm{67}}^1\times {\mathrm{320839}}^1$

素因数の和:320911

約数の個数: 16

約数和(自身を含む): 261805440

約数和(自身を除く): 132828162

約数列:

[1, 2, 3, 6, 67, 134, 201, 402, 320839, 641678, 962517, 1925034, 21496213, 42992426, 64488639, 128977278]

約数ペア:

[(1, 128977278), (2, 64488639), (3, 42992426), (6, 21496213), (67, 1925034), (134, 962517), (201, 641678), (402, 320839)]