268784218

素因数分解:

$2^1\times {\mathrm{173}}^1\times {\mathrm{389}}^1\times {\mathrm{1997}}^1$

素因数の和:2561

約数の個数: 16

約数和(自身を含む): 406752840

約数和(自身を除く): 137968622

約数列:

[1, 2, 173, 346, 389, 778, 1997, 3994, 67297, 134594, 345481, 690962, 776833, 1553666, 134392109, 268784218]

約数ペア:

[(1, 268784218), (2, 134392109), (173, 1553666), (346, 776833), (389, 690962), (778, 345481), (1997, 134594), (3994, 67297)]