128986768

素因数分解:

$2^4\times {\mathrm{223}}^1\times {\mathrm{36151}}^1$

素因数の和:36382

約数の個数: 20

約数和(自身を含む): 251039488

約数和(自身を除く): 122052720

約数列:

[1, 2, 4, 8, 16, 223, 446, 892, 1784, 3568, 36151, 72302, 144604, 289208, 578416, 8061673, 16123346, 32246692, 64493384, 128986768]

約数ペア:

[(1, 128986768), (2, 64493384), (4, 32246692), (8, 16123346), (16, 8061673), (223, 578416), (446, 289208), (892, 144604), (1784, 72302), (3568, 36151)]