81468160

素因数分解:

$2^8\times 5^1\times {\mathrm{63647}}^1$

素因数の和:63668

約数の個数: 36

約数和(自身を含む): 195144768

約数和(自身を除く): 113676608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 63647, 127294, 254588, 318235, 509176, 636470, 1018352, 1272940, 2036704, 2545880, 4073408, 5091760, 8146816, 10183520, 16293632, 20367040, 40734080, 81468160]

約数ペア:

[(1, 81468160), (2, 40734080), (4, 20367040), (5, 16293632), (8, 10183520), (10, 8146816), (16, 5091760), (20, 4073408), (32, 2545880), (40, 2036704), (64, 1272940), (80, 1018352), (128, 636470), (160, 509176), (256, 318235), (320, 254588), (640, 127294), (1280, 63647)]