164077168

素因数分解:

$2^4\times {\mathrm{509}}^1\times {\mathrm{20147}}^1$

素因数の和:20664

約数の個数: 20

約数和(自身を含む): 318539880

約数和(自身を除く): 154462712

約数列:

[1, 2, 4, 8, 16, 509, 1018, 2036, 4072, 8144, 20147, 40294, 80588, 161176, 322352, 10254823, 20509646, 41019292, 82038584, 164077168]

約数ペア:

[(1, 164077168), (2, 82038584), (4, 41019292), (8, 20509646), (16, 10254823), (509, 322352), (1018, 161176), (2036, 80588), (4072, 40294), (8144, 20147)]