20687044980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{49254869}}^1$

素因数の和:49254888

約数の個数: 48

約数和(自身を含む): 66198545280

約数和(自身を除く): 45511500300

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 49254869, 98509738, 147764607, 197019476, 246274345, 295529214, 344784083, 492548690, 591058428, 689568166, 738823035, 985097380, 1034352249, 1379136332, 1477646070, 1723920415, 2068704498, 2955292140, 3447840830, 4137408996, 5171761245, 6895681660, 10343522490, 20687044980]

約数ペア:

[(1, 20687044980), (2, 10343522490), (3, 6895681660), (4, 5171761245), (5, 4137408996), (6, 3447840830), (7, 2955292140), (10, 2068704498), (12, 1723920415), (14, 1477646070), (15, 1379136332), (20, 1034352249), (21, 985097380), (28, 738823035), (30, 689568166), (35, 591058428), (42, 492548690), (60, 344784083), (70, 295529214), (84, 246274345), (105, 197019476), (140, 147764607), (210, 98509738), (420, 49254869)]