8421420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{20051}}^1$

素因数の和:20070

約数の個数: 48

約数和(自身を含む): 26949888

約数和(自身を除く): 18528468

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, 20051, 40102, 60153, 80204, 100255, 120306, 140357, 200510, 240612, 280714, 300765, 401020, 421071, 561428, 601530, 701785, 842142, 1203060, 1403570, 1684284, 2105355, 2807140, 4210710, 8421420]

約数ペア:

[(1, 8421420), (2, 4210710), (3, 2807140), (4, 2105355), (5, 1684284), (6, 1403570), (7, 1203060), (10, 842142), (12, 701785), (14, 601530), (15, 561428), (20, 421071), (21, 401020), (28, 300765), (30, 280714), (35, 240612), (42, 200510), (60, 140357), (70, 120306), (84, 100255), (105, 80204), (140, 60153), (210, 40102), (420, 20051)]