54991960

素因数分解:

$2^3\times 5^1\times {\mathrm{619}}^1\times {\mathrm{2221}}^1$

素因数の和:2851

約数の個数: 32

約数和(自身を含む): 123987600

約数和(自身を除く): 68995640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 619, 1238, 2221, 2476, 3095, 4442, 4952, 6190, 8884, 11105, 12380, 17768, 22210, 24760, 44420, 88840, 1374799, 2749598, 5499196, 6873995, 10998392, 13747990, 27495980, 54991960]

約数ペア:

[(1, 54991960), (2, 27495980), (4, 13747990), (5, 10998392), (8, 6873995), (10, 5499196), (20, 2749598), (40, 1374799), (619, 88840), (1238, 44420), (2221, 24760), (2476, 22210), (3095, 17768), (4442, 12380), (4952, 11105), (6190, 8884)]