128211316

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{88789}}^1$

素因数の和:88831

約数の個数: 18

約数和(自身を含む): 236802930

約数和(自身を除く): 108591614

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 88789, 177578, 355156, 1686991, 3373982, 6747964, 32052829, 64105658, 128211316]

約数ペア:

[(1, 128211316), (2, 64105658), (4, 32052829), (19, 6747964), (38, 3373982), (76, 1686991), (361, 355156), (722, 177578), (1444, 88789)]