1279546240

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{285613}}^1$

素因数の和:285639

約数の個数: 64

約数和(自身を含む): 3495915360

約数和(自身を除く): 2216369120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 285613, 571226, 1142452, 1428065, 1999291, 2284904, 2856130, 3998582, 4569808, 5712260, 7997164, 9139616, 9996455, 11424520, 15994328, 18279232, 19992910, 22849040, 31988656, 36558464, 39985820, 45698080, 63977312, 79971640, 91396160, 127954624, 159943280, 182792320, 255909248, 319886560, 639773120, 1279546240]

約数ペア:

[(1, 1279546240), (2, 639773120), (4, 319886560), (5, 255909248), (7, 182792320), (8, 159943280), (10, 127954624), (14, 91396160), (16, 79971640), (20, 63977312), (28, 45698080), (32, 39985820), (35, 36558464), (40, 31988656), (56, 22849040), (64, 19992910), (70, 18279232), (80, 15994328), (112, 11424520), (128, 9996455), (140, 9139616), (160, 7997164), (224, 5712260), (280, 4569808), (320, 3998582), (448, 2856130), (560, 2284904), (640, 1999291), (896, 1428065), (1120, 1142452), (2240, 571226), (4480, 285613)]