128429272

素因数分解:

$2^3\times {\mathrm{409}}^1\times {\mathrm{39251}}^1$

素因数の和:39666

約数の個数: 16

約数和(自身を含む): 241399800

約数和(自身を除く): 112970528

約数列:

[1, 2, 4, 8, 409, 818, 1636, 3272, 39251, 78502, 157004, 314008, 16053659, 32107318, 64214636, 128429272]

約数ペア:

[(1, 128429272), (2, 64214636), (4, 32107318), (8, 16053659), (409, 314008), (818, 157004), (1636, 78502), (3272, 39251)]