772840

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^2$

素因数の和:289

約数の個数: 24

約数和(自身を含む): 1751490

約数和(自身を除く): 978650

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 19321, 38642, 77284, 96605, 154568, 193210, 386420, 772840]

約数ペア:

[(1, 772840), (2, 386420), (4, 193210), (5, 154568), (8, 96605), (10, 77284), (20, 38642), (40, 19321), (139, 5560), (278, 2780), (556, 1390), (695, 1112)]