20511960

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{24419}}^1$

素因数の和:24440

約数の個数: 64

約数和(自身を含む): 70329600

約数和(自身を除く): 49817640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 24419, 48838, 73257, 97676, 122095, 146514, 170933, 195352, 244190, 293028, 341866, 366285, 488380, 512799, 586056, 683732, 732570, 854665, 976760, 1025598, 1367464, 1465140, 1709330, 2051196, 2563995, 2930280, 3418660, 4102392, 5127990, 6837320, 10255980, 20511960]

約数ペア:

[(1, 20511960), (2, 10255980), (3, 6837320), (4, 5127990), (5, 4102392), (6, 3418660), (7, 2930280), (8, 2563995), (10, 2051196), (12, 1709330), (14, 1465140), (15, 1367464), (20, 1025598), (21, 976760), (24, 854665), (28, 732570), (30, 683732), (35, 586056), (40, 512799), (42, 488380), (56, 366285), (60, 341866), (70, 293028), (84, 244190), (105, 195352), (120, 170933), (140, 146514), (168, 122095), (210, 97676), (280, 73257), (420, 48838), (840, 24419)]