20537000

素因数分解:

$2^3\times 5^3\times {\mathrm{11}}^1\times {\mathrm{1867}}^1$

素因数の和:1899

約数の個数: 64

約数和(自身を含む): 52453440

約数和(自身を除く): 31916440

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 125, 200, 220, 250, 275, 440, 500, 550, 1000, 1100, 1375, 1867, 2200, 2750, 3734, 5500, 7468, 9335, 11000, 14936, 18670, 20537, 37340, 41074, 46675, 74680, 82148, 93350, 102685, 164296, 186700, 205370, 233375, 373400, 410740, 466750, 513425, 821480, 933500, 1026850, 1867000, 2053700, 2567125, 4107400, 5134250, 10268500, 20537000]

約数ペア:

[(1, 20537000), (2, 10268500), (4, 5134250), (5, 4107400), (8, 2567125), (10, 2053700), (11, 1867000), (20, 1026850), (22, 933500), (25, 821480), (40, 513425), (44, 466750), (50, 410740), (55, 373400), (88, 233375), (100, 205370), (110, 186700), (125, 164296), (200, 102685), (220, 93350), (250, 82148), (275, 74680), (440, 46675), (500, 41074), (550, 37340), (1000, 20537), (1100, 18670), (1375, 14936), (1867, 11000), (2200, 9335), (2750, 7468), (3734, 5500)]