19976460

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{47563}}^1$

素因数の和:47582

約数の個数: 48

約数和(自身を含む): 63926016

約数和(自身を除く): 43949556

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 47563, 95126, 142689, 190252, 237815, 285378, 332941, 475630, 570756, 665882, 713445, 951260, 998823, 1331764, 1426890, 1664705, 1997646, 2853780, 3329410, 3995292, 4994115, 6658820, 9988230, 19976460]

約数ペア:

[(1, 19976460), (2, 9988230), (3, 6658820), (4, 4994115), (5, 3995292), (6, 3329410), (7, 2853780), (10, 1997646), (12, 1664705), (14, 1426890), (15, 1331764), (20, 998823), (21, 951260), (28, 713445), (30, 665882), (35, 570756), (42, 475630), (60, 332941), (70, 285378), (84, 237815), (105, 190252), (140, 142689), (210, 95126), (420, 47563)]