1256861090

素因数分解:

$2^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{307301}}^1$

素因数の和:307717

約数の個数: 16

約数和(自身を含む): 2267888760

約数和(自身を除く): 1011027670

約数列:

[1, 2, 5, 10, 409, 818, 2045, 4090, 307301, 614602, 1536505, 3073010, 125686109, 251372218, 628430545, 1256861090]

約数ペア:

[(1, 1256861090), (2, 628430545), (5, 251372218), (10, 125686109), (409, 3073010), (818, 1536505), (2045, 614602), (4090, 307301)]