20161749980

素因数分解:

$2^2\times 5^1\times {\mathrm{4003}}^1\times {\mathrm{251833}}^1$

素因数の和:255845

約数の個数: 24

約数和(自身を含む): 42350420112

約数和(自身を除く): 22188670132

約数列:

[1, 2, 4, 5, 10, 20, 4003, 8006, 16012, 20015, 40030, 80060, 251833, 503666, 1007332, 1259165, 2518330, 5036660, 1008087499, 2016174998, 4032349996, 5040437495, 10080874990, 20161749980]

約数ペア:

[(1, 20161749980), (2, 10080874990), (4, 5040437495), (5, 4032349996), (10, 2016174998), (20, 1008087499), (4003, 5036660), (8006, 2518330), (16012, 1259165), (20015, 1007332), (40030, 503666), (80060, 251833)]