39976720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{71387}}^1$

素因数の和:71407

約数の個数: 40

約数和(自身を含む): 106225344

約数和(自身を除く): 66248624

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 71387, 142774, 285548, 356935, 499709, 571096, 713870, 999418, 1142192, 1427740, 1998836, 2498545, 2855480, 3997672, 4997090, 5710960, 7995344, 9994180, 19988360, 39976720]

約数ペア:

[(1, 39976720), (2, 19988360), (4, 9994180), (5, 7995344), (7, 5710960), (8, 4997090), (10, 3997672), (14, 2855480), (16, 2498545), (20, 1998836), (28, 1427740), (35, 1142192), (40, 999418), (56, 713870), (70, 571096), (80, 499709), (112, 356935), (140, 285548), (280, 142774), (560, 71387)]