55248920

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{22643}}^1$

素因数の和:22715

約数の個数: 32

約数和(自身を含む): 126353520

約数和(自身を除く): 71104600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 22643, 45286, 90572, 113215, 181144, 226430, 452860, 905720, 1381223, 2762446, 5524892, 6906115, 11049784, 13812230, 27624460, 55248920]

約数ペア:

[(1, 55248920), (2, 27624460), (4, 13812230), (5, 11049784), (8, 6906115), (10, 5524892), (20, 2762446), (40, 1381223), (61, 905720), (122, 452860), (244, 226430), (305, 181144), (488, 113215), (610, 90572), (1220, 45286), (2440, 22643)]