25908790

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{677}}^1$

素因数の和:816

約数の個数: 32

約数和(自身を含む): 48327840

約数和(自身を除く): 22419050

約数列:

[1, 2, 5, 10, 43, 86, 89, 178, 215, 430, 445, 677, 890, 1354, 3385, 3827, 6770, 7654, 19135, 29111, 38270, 58222, 60253, 120506, 145555, 291110, 301265, 602530, 2590879, 5181758, 12954395, 25908790]

約数ペア:

[(1, 25908790), (2, 12954395), (5, 5181758), (10, 2590879), (43, 602530), (86, 301265), (89, 291110), (178, 145555), (215, 120506), (430, 60253), (445, 58222), (677, 38270), (890, 29111), (1354, 19135), (3385, 7654), (3827, 6770)]