81489268

素因数分解:

$2^2\times 7^1\times {\mathrm{743}}^1\times {\mathrm{3917}}^1$

素因数の和:4671

約数の個数: 24

約数和(自身を含む): 163239552

約数和(自身を除く): 81750284

約数列:

[1, 2, 4, 7, 14, 28, 743, 1486, 2972, 3917, 5201, 7834, 10402, 15668, 20804, 27419, 54838, 109676, 2910331, 5820662, 11641324, 20372317, 40744634, 81489268]

約数ペア:

[(1, 81489268), (2, 40744634), (4, 20372317), (7, 11641324), (14, 5820662), (28, 2910331), (743, 109676), (1486, 54838), (2972, 27419), (3917, 20804), (5201, 15668), (7834, 10402)]