18511780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{5749}}^1$

素因数の和:5788

約数の個数: 48

約数和(自身を含む): 46368000

約数和(自身を除く): 27856220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 5749, 11498, 22996, 28745, 40243, 57490, 80486, 114980, 132227, 160972, 201215, 264454, 402430, 528908, 661135, 804860, 925589, 1322270, 1851178, 2644540, 3702356, 4627945, 9255890, 18511780]

約数ペア:

[(1, 18511780), (2, 9255890), (4, 4627945), (5, 3702356), (7, 2644540), (10, 1851178), (14, 1322270), (20, 925589), (23, 804860), (28, 661135), (35, 528908), (46, 402430), (70, 264454), (92, 201215), (115, 160972), (140, 132227), (161, 114980), (230, 80486), (322, 57490), (460, 40243), (644, 28745), (805, 22996), (1610, 11498), (3220, 5749)]