20536460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{383}}^2$

素因数の和:782

約数の個数: 36

約数和(自身を含む): 49416528

約数和(自身を除く): 28880068

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 383, 766, 1532, 1915, 2681, 3830, 5362, 7660, 10724, 13405, 26810, 53620, 146689, 293378, 586756, 733445, 1026823, 1466890, 2053646, 2933780, 4107292, 5134115, 10268230, 20536460]

約数ペア:

[(1, 20536460), (2, 10268230), (4, 5134115), (5, 4107292), (7, 2933780), (10, 2053646), (14, 1466890), (20, 1026823), (28, 733445), (35, 586756), (70, 293378), (140, 146689), (383, 53620), (766, 26810), (1532, 13405), (1915, 10724), (2681, 7660), (3830, 5362)]