51858280

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{6581}}^1$

素因数の和:6789

約数の個数: 32

約数和(自身を含む): 117291240

約数和(自身を除く): 65432960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3940, 6581, 7880, 13162, 26324, 32905, 52648, 65810, 131620, 263240, 1296457, 2592914, 5185828, 6482285, 10371656, 12964570, 25929140, 51858280]

約数ペア:

[(1, 51858280), (2, 25929140), (4, 12964570), (5, 10371656), (8, 6482285), (10, 5185828), (20, 2592914), (40, 1296457), (197, 263240), (394, 131620), (788, 65810), (985, 52648), (1576, 32905), (1970, 26324), (3940, 13162), (6581, 7880)]