8347220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{547}}^1$

素因数の和:672

約数の個数: 48

約数和(自身を含む): 20254080

約数和(自身を除く): 11906860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 109, 140, 218, 436, 545, 547, 763, 1090, 1094, 1526, 2180, 2188, 2735, 3052, 3815, 3829, 5470, 7630, 7658, 10940, 15260, 15316, 19145, 38290, 59623, 76580, 119246, 238492, 298115, 417361, 596230, 834722, 1192460, 1669444, 2086805, 4173610, 8347220]

約数ペア:

[(1, 8347220), (2, 4173610), (4, 2086805), (5, 1669444), (7, 1192460), (10, 834722), (14, 596230), (20, 417361), (28, 298115), (35, 238492), (70, 119246), (109, 76580), (140, 59623), (218, 38290), (436, 19145), (545, 15316), (547, 15260), (763, 10940), (1090, 7658), (1094, 7630), (1526, 5470), (2180, 3829), (2188, 3815), (2735, 3052)]