64777720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{231349}}^1$

素因数の和:231367

約数の個数: 32

約数和(自身を含む): 166572000

約数和(自身を除く): 101794280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 231349, 462698, 925396, 1156745, 1619443, 1850792, 2313490, 3238886, 4626980, 6477772, 8097215, 9253960, 12955544, 16194430, 32388860, 64777720]

約数ペア:

[(1, 64777720), (2, 32388860), (4, 16194430), (5, 12955544), (7, 9253960), (8, 8097215), (10, 6477772), (14, 4626980), (20, 3238886), (28, 2313490), (35, 1850792), (40, 1619443), (56, 1156745), (70, 925396), (140, 462698), (280, 231349)]