2865940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1861}}^1$

素因数の和:1888

約数の個数: 48

約数和(自身を含む): 7507584

約数和(自身を除く): 4641644

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 1861, 3722, 7444, 9305, 13027, 18610, 20471, 26054, 37220, 40942, 52108, 65135, 81884, 102355, 130270, 143297, 204710, 260540, 286594, 409420, 573188, 716485, 1432970, 2865940]

約数ペア:

[(1, 2865940), (2, 1432970), (4, 716485), (5, 573188), (7, 409420), (10, 286594), (11, 260540), (14, 204710), (20, 143297), (22, 130270), (28, 102355), (35, 81884), (44, 65135), (55, 52108), (70, 40942), (77, 37220), (110, 26054), (140, 20471), (154, 18610), (220, 13027), (308, 9305), (385, 7444), (770, 3722), (1540, 1861)]