20168517900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{563}}^1\times {\mathrm{2777}}^1$

素因数の和:3400

約数の個数: 144

約数和(自身を含む): 59838920064

約数和(自身を除く): 39670402164

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 43, 50, 60, 75, 86, 100, 129, 150, 172, 215, 258, 300, 430, 516, 563, 645, 860, 1075, 1126, 1290, 1689, 2150, 2252, 2580, 2777, 2815, 3225, 3378, 4300, 5554, 5630, 6450, 6756, 8331, 8445, 11108, 11260, 12900, 13885, 14075, 16662, 16890, 24209, 27770, 28150, 33324, 33780, 41655, 42225, 48418, 55540, 56300, 69425, 72627, 83310, 84450, 96836, 119411, 121045, 138850, 145254, 166620, 168900, 208275, 238822, 242090, 277700, 290508, 358233, 363135, 416550, 477644, 484180, 597055, 605225, 716466, 726270, 833100, 1194110, 1210450, 1432932, 1452540, 1563451, 1791165, 1815675, 2388220, 2420900, 2985275, 3126902, 3582330, 3631350, 4690353, 5970550, 6253804, 7164660, 7262700, 7817255, 8955825, 9380706, 11941100, 15634510, 17911650, 18761412, 23451765, 31269020, 35823300, 39086275, 46903530, 67228393, 78172550, 93807060, 117258825, 134456786, 156345100, 201685179, 234517650, 268913572, 336141965, 403370358, 469035300, 672283930, 806740716, 1008425895, 1344567860, 1680709825, 2016851790, 3361419650, 4033703580, 5042129475, 6722839300, 10084258950, 20168517900]

約数ペア:

[(1, 20168517900), (2, 10084258950), (3, 6722839300), (4, 5042129475), (5, 4033703580), (6, 3361419650), (10, 2016851790), (12, 1680709825), (15, 1344567860), (20, 1008425895), (25, 806740716), (30, 672283930), (43, 469035300), (50, 403370358), (60, 336141965), (75, 268913572), (86, 234517650), (100, 201685179), (129, 156345100), (150, 134456786), (172, 117258825), (215, 93807060), (258, 78172550), (300, 67228393), (430, 46903530), (516, 39086275), (563, 35823300), (645, 31269020), (860, 23451765), (1075, 18761412), (1126, 17911650), (1290, 15634510), (1689, 11941100), (2150, 9380706), (2252, 8955825), (2580, 7817255), (2777, 7262700), (2815, 7164660), (3225, 6253804), (3378, 5970550), (4300, 4690353), (5554, 3631350), (5630, 3582330), (6450, 3126902), (6756, 2985275), (8331, 2420900), (8445, 2388220), (11108, 1815675), (11260, 1791165), (12900, 1563451), (13885, 1452540), (14075, 1432932), (16662, 1210450), (16890, 1194110), (24209, 833100), (27770, 726270), (28150, 716466), (33324, 605225), (33780, 597055), (41655, 484180), (42225, 477644), (48418, 416550), (55540, 363135), (56300, 358233), (69425, 290508), (72627, 277700), (83310, 242090), (84450, 238822), (96836, 208275), (119411, 168900), (121045, 166620), (138850, 145254)]