645185068

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{1333027}}^1$

素因数の和:1333053

約数の個数: 18

約数和(自身を含む): 1241049068

約数和(自身を除く): 595864000

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 1333027, 2666054, 5332108, 14663297, 29326594, 58653188, 161296267, 322592534, 645185068]

約数ペア:

[(1, 645185068), (2, 322592534), (4, 161296267), (11, 58653188), (22, 29326594), (44, 14663297), (121, 5332108), (242, 2666054), (484, 1333027)]