20212842675

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^2$

素因数の和:298

約数の個数: 144

約数和(自身を含む): 37352966400

約数和(自身を除く): 17140123725

約数列:

[1, 3, 5, 15, 19, 25, 29, 57, 71, 75, 83, 87, 95, 145, 213, 249, 285, 355, 415, 435, 475, 551, 725, 1065, 1245, 1349, 1425, 1577, 1653, 1775, 2059, 2075, 2175, 2407, 2755, 4047, 4731, 5325, 5893, 6177, 6225, 6745, 6889, 7221, 7885, 8265, 10295, 12035, 13775, 17679, 20235, 20667, 23655, 29465, 30885, 33725, 34445, 36105, 39121, 39425, 41325, 45733, 51475, 60175, 88395, 101175, 103335, 111967, 117363, 118275, 130891, 137199, 147325, 154425, 170897, 172225, 180525, 195605, 199781, 228665, 335901, 392673, 441975, 489119, 512691, 516675, 559835, 586815, 599343, 654455, 685995, 854485, 978025, 998905, 1143325, 1467357, 1679505, 1963365, 2445595, 2563455, 2799175, 2934075, 2996715, 3247043, 3272275, 3429975, 3795839, 4272425, 4994525, 7336785, 8397525, 9293261, 9741129, 9816825, 11387517, 12227975, 12817275, 14184451, 14983575, 16235215, 18979195, 27879783, 36683925, 42553353, 46466305, 48705645, 56937585, 70922255, 81176075, 94895975, 139398915, 212766765, 232331525, 243528225, 269504569, 284687925, 354611275, 696994575, 808513707, 1063833825, 1347522845, 4042568535, 6737614225, 20212842675]

約数ペア:

[(1, 20212842675), (3, 6737614225), (5, 4042568535), (15, 1347522845), (19, 1063833825), (25, 808513707), (29, 696994575), (57, 354611275), (71, 284687925), (75, 269504569), (83, 243528225), (87, 232331525), (95, 212766765), (145, 139398915), (213, 94895975), (249, 81176075), (285, 70922255), (355, 56937585), (415, 48705645), (435, 46466305), (475, 42553353), (551, 36683925), (725, 27879783), (1065, 18979195), (1245, 16235215), (1349, 14983575), (1425, 14184451), (1577, 12817275), (1653, 12227975), (1775, 11387517), (2059, 9816825), (2075, 9741129), (2175, 9293261), (2407, 8397525), (2755, 7336785), (4047, 4994525), (4731, 4272425), (5325, 3795839), (5893, 3429975), (6177, 3272275), (6225, 3247043), (6745, 2996715), (6889, 2934075), (7221, 2799175), (7885, 2563455), (8265, 2445595), (10295, 1963365), (12035, 1679505), (13775, 1467357), (17679, 1143325), (20235, 998905), (20667, 978025), (23655, 854485), (29465, 685995), (30885, 654455), (33725, 599343), (34445, 586815), (36105, 559835), (39121, 516675), (39425, 512691), (41325, 489119), (45733, 441975), (51475, 392673), (60175, 335901), (88395, 228665), (101175, 199781), (103335, 195605), (111967, 180525), (117363, 172225), (118275, 170897), (130891, 154425), (137199, 147325)]