80417804

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{55691}}^1$

素因数の和:55733

約数の個数: 18

約数和(自身を含む): 148530564

約数和(自身を除く): 68112760

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 55691, 111382, 222764, 1058129, 2116258, 4232516, 20104451, 40208902, 80417804]

約数ペア:

[(1, 80417804), (2, 40208902), (4, 20104451), (19, 4232516), (38, 2116258), (76, 1058129), (361, 222764), (722, 111382), (1444, 55691)]