51541720

素因数分解:

$2^3\times 5^1\times {\mathrm{1288543}}^1$

素因数の和:1288554

約数の個数: 16

約数和(自身を含む): 115968960

約数和(自身を除く): 64427240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1288543, 2577086, 5154172, 6442715, 10308344, 12885430, 25770860, 51541720]

約数ペア:

[(1, 51541720), (2, 25770860), (4, 12885430), (5, 10308344), (8, 6442715), (10, 5154172), (20, 2577086), (40, 1288543)]