128522864

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{195919}}^1$

素因数の和:195968

約数の個数: 20

約数和(自身を含む): 255087840

約数和(自身を除く): 126564976

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 195919, 391838, 783676, 1567352, 3134704, 8032679, 16065358, 32130716, 64261432, 128522864]

約数ペア:

[(1, 128522864), (2, 64261432), (4, 32130716), (8, 16065358), (16, 8032679), (41, 3134704), (82, 1567352), (164, 783676), (328, 391838), (656, 195919)]