25440880

素因数分解:

$2^4\times 5^1\times {\mathrm{487}}^1\times {\mathrm{653}}^1$

素因数の和:1153

約数の個数: 40

約数和(自身を含む): 59362272

約数和(自身を除く): 33921392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 487, 653, 974, 1306, 1948, 2435, 2612, 3265, 3896, 4870, 5224, 6530, 7792, 9740, 10448, 13060, 19480, 26120, 38960, 52240, 318011, 636022, 1272044, 1590055, 2544088, 3180110, 5088176, 6360220, 12720440, 25440880]

約数ペア:

[(1, 25440880), (2, 12720440), (4, 6360220), (5, 5088176), (8, 3180110), (10, 2544088), (16, 1590055), (20, 1272044), (40, 636022), (80, 318011), (487, 52240), (653, 38960), (974, 26120), (1306, 19480), (1948, 13060), (2435, 10448), (2612, 9740), (3265, 7792), (3896, 6530), (4870, 5224)]