261208488

素因数分解:

$2^3\times 3^1\times {\mathrm{43}}^1\times {\mathrm{253109}}^1$

素因数の和:253161

約数の個数: 32

約数和(自身を含む): 668210400

約数和(自身を除く): 407001912

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 43, 86, 129, 172, 258, 344, 516, 1032, 253109, 506218, 759327, 1012436, 1518654, 2024872, 3037308, 6074616, 10883687, 21767374, 32651061, 43534748, 65302122, 87069496, 130604244, 261208488]

約数ペア:

[(1, 261208488), (2, 130604244), (3, 87069496), (4, 65302122), (6, 43534748), (8, 32651061), (12, 21767374), (24, 10883687), (43, 6074616), (86, 3037308), (129, 2024872), (172, 1518654), (258, 1012436), (344, 759327), (516, 506218), (1032, 253109)]