1568920

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{643}}^1$

素因数の和:715

約数の個数: 32

約数和(自身を含む): 3593520

約数和(自身を除く): 2024600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 643, 1220, 1286, 2440, 2572, 3215, 5144, 6430, 12860, 25720, 39223, 78446, 156892, 196115, 313784, 392230, 784460, 1568920]

約数ペア:

[(1, 1568920), (2, 784460), (4, 392230), (5, 313784), (8, 196115), (10, 156892), (20, 78446), (40, 39223), (61, 25720), (122, 12860), (244, 6430), (305, 5144), (488, 3215), (610, 2572), (643, 2440), (1220, 1286)]