20248844775

素因数分解:

$3^1\times 5^2\times {\mathrm{37}}^2\times {\mathrm{53}}^1\times {\mathrm{61}}^2$

素因数の和:262

約数の個数: 108

約数和(自身を含む): 35640671976

約数和(自身を除く): 15391827201

約数列:

[1, 3, 5, 15, 25, 37, 53, 61, 75, 111, 159, 183, 185, 265, 305, 555, 795, 915, 925, 1325, 1369, 1525, 1961, 2257, 2775, 3233, 3721, 3975, 4107, 4575, 5883, 6771, 6845, 9699, 9805, 11163, 11285, 16165, 18605, 20535, 29415, 33855, 34225, 48495, 49025, 55815, 56425, 72557, 80825, 83509, 93025, 102675, 119621, 137677, 147075, 169275, 197213, 217671, 242475, 250527, 279075, 358863, 362785, 413031, 417545, 591639, 598105, 688385, 986065, 1088355, 1252635, 1794315, 1813925, 2065155, 2087725, 2958195, 2990525, 3441925, 4425977, 4930325, 5094049, 5441775, 6263175, 7296881, 8971575, 10325775, 13277931, 14790975, 15282147, 21890643, 22129885, 25470245, 36484405, 66389655, 76410735, 109453215, 110649425, 127351225, 182422025, 269984597, 331948275, 382053675, 547266075, 809953791, 1349922985, 4049768955, 6749614925, 20248844775]

約数ペア:

[(1, 20248844775), (3, 6749614925), (5, 4049768955), (15, 1349922985), (25, 809953791), (37, 547266075), (53, 382053675), (61, 331948275), (75, 269984597), (111, 182422025), (159, 127351225), (183, 110649425), (185, 109453215), (265, 76410735), (305, 66389655), (555, 36484405), (795, 25470245), (915, 22129885), (925, 21890643), (1325, 15282147), (1369, 14790975), (1525, 13277931), (1961, 10325775), (2257, 8971575), (2775, 7296881), (3233, 6263175), (3721, 5441775), (3975, 5094049), (4107, 4930325), (4575, 4425977), (5883, 3441925), (6771, 2990525), (6845, 2958195), (9699, 2087725), (9805, 2065155), (11163, 1813925), (11285, 1794315), (16165, 1252635), (18605, 1088355), (20535, 986065), (29415, 688385), (33855, 598105), (34225, 591639), (48495, 417545), (49025, 413031), (55815, 362785), (56425, 358863), (72557, 279075), (80825, 250527), (83509, 242475), (93025, 217671), (102675, 197213), (119621, 169275), (137677, 147075)]