39278540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{280561}}^1$

素因数の和:280577

約数の個数: 24

約数和(自身を含む): 94268832

約数和(自身を除く): 54990292

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 280561, 561122, 1122244, 1402805, 1963927, 2805610, 3927854, 5611220, 7855708, 9819635, 19639270, 39278540]

約数ペア:

[(1, 39278540), (2, 19639270), (4, 9819635), (5, 7855708), (7, 5611220), (10, 3927854), (14, 2805610), (20, 1963927), (28, 1402805), (35, 1122244), (70, 561122), (140, 280561)]