160327820

素因数分解:

$2^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{19991}}^1$

素因数の和:20401

約数の個数: 24

約数和(自身を含む): 337544928

約数和(自身を除く): 177217108

約数列:

[1, 2, 4, 5, 10, 20, 401, 802, 1604, 2005, 4010, 8020, 19991, 39982, 79964, 99955, 199910, 399820, 8016391, 16032782, 32065564, 40081955, 80163910, 160327820]

約数ペア:

[(1, 160327820), (2, 80163910), (4, 40081955), (5, 32065564), (10, 16032782), (20, 8016391), (401, 399820), (802, 199910), (1604, 99955), (2005, 79964), (4010, 39982), (8020, 19991)]