19712840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{3061}}^1$

素因数の和:3102

約数の個数: 64

約数和(自身を含む): 52911360

約数和(自身を除く): 33198520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 644, 805, 920, 1288, 1610, 3061, 3220, 6122, 6440, 12244, 15305, 21427, 24488, 30610, 42854, 61220, 70403, 85708, 107135, 122440, 140806, 171416, 214270, 281612, 352015, 428540, 492821, 563224, 704030, 857080, 985642, 1408060, 1971284, 2464105, 2816120, 3942568, 4928210, 9856420, 19712840]

約数ペア:

[(1, 19712840), (2, 9856420), (4, 4928210), (5, 3942568), (7, 2816120), (8, 2464105), (10, 1971284), (14, 1408060), (20, 985642), (23, 857080), (28, 704030), (35, 563224), (40, 492821), (46, 428540), (56, 352015), (70, 281612), (92, 214270), (115, 171416), (140, 140806), (161, 122440), (184, 107135), (230, 85708), (280, 70403), (322, 61220), (460, 42854), (644, 30610), (805, 24488), (920, 21427), (1288, 15305), (1610, 12244), (3061, 6440), (3220, 6122)]