20837320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{74419}}^1$

素因数の和:74437

約数の個数: 32

約数和(自身を含む): 53582400

約数和(自身を除く): 32745080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 74419, 148838, 297676, 372095, 520933, 595352, 744190, 1041866, 1488380, 2083732, 2604665, 2976760, 4167464, 5209330, 10418660, 20837320]

約数ペア:

[(1, 20837320), (2, 10418660), (4, 5209330), (5, 4167464), (7, 2976760), (8, 2604665), (10, 2083732), (14, 1488380), (20, 1041866), (28, 744190), (35, 595352), (40, 520933), (56, 372095), (70, 297676), (140, 148838), (280, 74419)]