128742008

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{519121}}^1$

素因数の和:519158

約数の個数: 16

約数和(自身を含む): 249178560

約数和(自身を除く): 120436552

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 519121, 1038242, 2076484, 4152968, 16092751, 32185502, 64371004, 128742008]

約数ペア:

[(1, 128742008), (2, 64371004), (4, 32185502), (8, 16092751), (31, 4152968), (62, 2076484), (124, 1038242), (248, 519121)]