31318190

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1\times {\mathrm{421}}^1$

素因数の和:644

約数の個数: 32

約数和(自身を含む): 58154976

約数和(自身を除く): 26836786

約数列:

[1, 2, 5, 10, 43, 86, 173, 215, 346, 421, 430, 842, 865, 1730, 2105, 4210, 7439, 14878, 18103, 36206, 37195, 72833, 74390, 90515, 145666, 181030, 364165, 728330, 3131819, 6263638, 15659095, 31318190]

約数ペア:

[(1, 31318190), (2, 15659095), (5, 6263638), (10, 3131819), (43, 728330), (86, 364165), (173, 181030), (215, 145666), (346, 90515), (421, 74390), (430, 72833), (842, 37195), (865, 36206), (1730, 18103), (2105, 14878), (4210, 7439)]