221502680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{791081}}^1$

素因数の和:791099

約数の個数: 32

約数和(自身を含む): 569579040

約数和(自身を除く): 348076360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 791081, 1582162, 3164324, 3955405, 5537567, 6328648, 7910810, 11075134, 15821620, 22150268, 27687835, 31643240, 44300536, 55375670, 110751340, 221502680]

約数ペア:

[(1, 221502680), (2, 110751340), (4, 55375670), (5, 44300536), (7, 31643240), (8, 27687835), (10, 22150268), (14, 15821620), (20, 11075134), (28, 7910810), (35, 6328648), (40, 5537567), (56, 3955405), (70, 3164324), (140, 1582162), (280, 791081)]