17818780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{127277}}^1$

素因数の和:127293

約数の個数: 24

約数和(自身を含む): 42765408

約数和(自身を除く): 24946628

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 127277, 254554, 509108, 636385, 890939, 1272770, 1781878, 2545540, 3563756, 4454695, 8909390, 17818780]

約数ペア:

[(1, 17818780), (2, 8909390), (4, 4454695), (5, 3563756), (7, 2545540), (10, 1781878), (14, 1272770), (20, 890939), (28, 636385), (35, 509108), (70, 254554), (140, 127277)]