219112880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{391273}}^1$

素因数の和:391293

約数の個数: 40

約数和(自身を含む): 582215712

約数和(自身を除く): 363102832

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 391273, 782546, 1565092, 1956365, 2738911, 3130184, 3912730, 5477822, 6260368, 7825460, 10955644, 13694555, 15650920, 21911288, 27389110, 31301840, 43822576, 54778220, 109556440, 219112880]

約数ペア:

[(1, 219112880), (2, 109556440), (4, 54778220), (5, 43822576), (7, 31301840), (8, 27389110), (10, 21911288), (14, 15650920), (16, 13694555), (20, 10955644), (28, 7825460), (35, 6260368), (40, 5477822), (56, 3912730), (70, 3130184), (80, 2738911), (112, 1956365), (140, 1565092), (280, 782546), (560, 391273)]