128968016

素因数分解:

$2^4\times {\mathrm{401}}^1\times {\mathrm{20101}}^1$

素因数の和:20510

約数の個数: 20

約数和(自身を含む): 250511124

約数和(自身を除く): 121543108

約数列:

[1, 2, 4, 8, 16, 401, 802, 1604, 3208, 6416, 20101, 40202, 80404, 160808, 321616, 8060501, 16121002, 32242004, 64484008, 128968016]

約数ペア:

[(1, 128968016), (2, 64484008), (4, 32242004), (8, 16121002), (16, 8060501), (401, 321616), (802, 160808), (1604, 80404), (3208, 40202), (6416, 20101)]