254162860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1815449}}^1$

素因数の和:1815465

約数の個数: 24

約数和(自身を含む): 609991200

約数和(自身を除く): 355828340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1815449, 3630898, 7261796, 9077245, 12708143, 18154490, 25416286, 36308980, 50832572, 63540715, 127081430, 254162860]

約数ペア:

[(1, 254162860), (2, 127081430), (4, 63540715), (5, 50832572), (7, 36308980), (10, 25416286), (14, 18154490), (20, 12708143), (28, 9077245), (35, 7261796), (70, 3630898), (140, 1815449)]