258682240

素因数分解:

$2^7\times 5^1\times {\mathrm{404191}}^1$

素因数の和:404210

約数の個数: 32

約数和(自身を含む): 618413760

約数和(自身を除く): 359731520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 404191, 808382, 1616764, 2020955, 3233528, 4041910, 6467056, 8083820, 12934112, 16167640, 25868224, 32335280, 51736448, 64670560, 129341120, 258682240]

約数ペア:

[(1, 258682240), (2, 129341120), (4, 64670560), (5, 51736448), (8, 32335280), (10, 25868224), (16, 16167640), (20, 12934112), (32, 8083820), (40, 6467056), (64, 4041910), (80, 3233528), (128, 2020955), (160, 1616764), (320, 808382), (640, 404191)]