21406000

素因数分解:

$2^4\times 5^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1$

素因数の和:180

約数の個数: 160

約数和(自身を含む): 64995840

約数和(自身を除く): 43589840

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 25, 28, 35, 40, 44, 50, 55, 56, 70, 77, 80, 88, 100, 110, 112, 125, 139, 140, 154, 175, 176, 200, 220, 250, 275, 278, 280, 308, 350, 385, 400, 440, 500, 550, 556, 560, 616, 695, 700, 770, 875, 880, 973, 1000, 1100, 1112, 1232, 1375, 1390, 1400, 1529, 1540, 1750, 1925, 1946, 2000, 2200, 2224, 2750, 2780, 2800, 3058, 3080, 3475, 3500, 3850, 3892, 4400, 4865, 5500, 5560, 6116, 6160, 6950, 7000, 7645, 7700, 7784, 9625, 9730, 10703, 11000, 11120, 12232, 13900, 14000, 15290, 15400, 15568, 17375, 19250, 19460, 21406, 22000, 24325, 24464, 27800, 30580, 30800, 34750, 38225, 38500, 38920, 42812, 48650, 53515, 55600, 61160, 69500, 76450, 77000, 77840, 85624, 97300, 107030, 121625, 122320, 139000, 152900, 154000, 171248, 191125, 194600, 214060, 243250, 267575, 278000, 305800, 382250, 389200, 428120, 486500, 535150, 611600, 764500, 856240, 973000, 1070300, 1337875, 1529000, 1946000, 2140600, 2675750, 3058000, 4281200, 5351500, 10703000, 21406000]

約数ペア:

[(1, 21406000), (2, 10703000), (4, 5351500), (5, 4281200), (7, 3058000), (8, 2675750), (10, 2140600), (11, 1946000), (14, 1529000), (16, 1337875), (20, 1070300), (22, 973000), (25, 856240), (28, 764500), (35, 611600), (40, 535150), (44, 486500), (50, 428120), (55, 389200), (56, 382250), (70, 305800), (77, 278000), (80, 267575), (88, 243250), (100, 214060), (110, 194600), (112, 191125), (125, 171248), (139, 154000), (140, 152900), (154, 139000), (175, 122320), (176, 121625), (200, 107030), (220, 97300), (250, 85624), (275, 77840), (278, 77000), (280, 76450), (308, 69500), (350, 61160), (385, 55600), (400, 53515), (440, 48650), (500, 42812), (550, 38920), (556, 38500), (560, 38225), (616, 34750), (695, 30800), (700, 30580), (770, 27800), (875, 24464), (880, 24325), (973, 22000), (1000, 21406), (1100, 19460), (1112, 19250), (1232, 17375), (1375, 15568), (1390, 15400), (1400, 15290), (1529, 14000), (1540, 13900), (1750, 12232), (1925, 11120), (1946, 11000), (2000, 10703), (2200, 9730), (2224, 9625), (2750, 7784), (2780, 7700), (2800, 7645), (3058, 7000), (3080, 6950), (3475, 6160), (3500, 6116), (3850, 5560), (3892, 5500), (4400, 4865)]