208014520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{742909}}^1$

素因数の和:742927

約数の個数: 32

約数和(自身を含む): 534895200

約数和(自身を除く): 326880680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 742909, 1485818, 2971636, 3714545, 5200363, 5943272, 7429090, 10400726, 14858180, 20801452, 26001815, 29716360, 41602904, 52003630, 104007260, 208014520]

約数ペア:

[(1, 208014520), (2, 104007260), (4, 52003630), (5, 41602904), (7, 29716360), (8, 26001815), (10, 20801452), (14, 14858180), (20, 10400726), (28, 7429090), (35, 5943272), (40, 5200363), (56, 3714545), (70, 2971636), (140, 1485818), (280, 742909)]