204099020

素因数分解:

$2^2\times 5^1\times {\mathrm{2789}}^1\times {\mathrm{3659}}^1$

素因数の和:6457

約数の個数: 24

約数和(自身を含む): 428878800

約数和(自身を除く): 224779780

約数列:

[1, 2, 4, 5, 10, 20, 2789, 3659, 5578, 7318, 11156, 13945, 14636, 18295, 27890, 36590, 55780, 73180, 10204951, 20409902, 40819804, 51024755, 102049510, 204099020]

約数ペア:

[(1, 204099020), (2, 102049510), (4, 51024755), (5, 40819804), (10, 20409902), (20, 10204951), (2789, 73180), (3659, 55780), (5578, 36590), (7318, 27890), (11156, 18295), (13945, 14636)]