268648515

素因数分解:

$3^3\times 5^1\times {\mathrm{1989989}}^1$

素因数の和:1990003

約数の個数: 16

約数和(自身を含む): 477597600

約数和(自身を除く): 208949085

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 1989989, 5969967, 9949945, 17909901, 29849835, 53729703, 89549505, 268648515]

約数ペア:

[(1, 268648515), (3, 89549505), (5, 53729703), (9, 29849835), (15, 17909901), (27, 9949945), (45, 5969967), (135, 1989989)]