1290227978

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{740659}}^1$

素因数の和:740741

約数の個数: 16

約数和(自身を含む): 2115324960

約数和(自身を除く): 825096982

約数列:

[1, 2, 13, 26, 67, 134, 871, 1742, 740659, 1481318, 9628567, 19257134, 49624153, 99248306, 645113989, 1290227978]

約数ペア:

[(1, 1290227978), (2, 645113989), (13, 99248306), (26, 49624153), (67, 19257134), (134, 9628567), (871, 1481318), (1742, 740659)]