249359120

素因数分解:

$2^4\times 5^1\times {\mathrm{409}}^1\times {\mathrm{7621}}^1$

素因数の和:8043

約数の個数: 40

約数和(自身を含む): 581253720

約数和(自身を除く): 331894600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 409, 818, 1636, 2045, 3272, 4090, 6544, 7621, 8180, 15242, 16360, 30484, 32720, 38105, 60968, 76210, 121936, 152420, 304840, 609680, 3116989, 6233978, 12467956, 15584945, 24935912, 31169890, 49871824, 62339780, 124679560, 249359120]

約数ペア:

[(1, 249359120), (2, 124679560), (4, 62339780), (5, 49871824), (8, 31169890), (10, 24935912), (16, 15584945), (20, 12467956), (40, 6233978), (80, 3116989), (409, 609680), (818, 304840), (1636, 152420), (2045, 121936), (3272, 76210), (4090, 60968), (6544, 38105), (7621, 32720), (8180, 30484), (15242, 16360)]