257258640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{1071911}}^1$

素因数の和:1071927

約数の個数: 40

約数和(自身を含む): 797502528

約数和(自身を除く): 540243888

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 1071911, 2143822, 3215733, 4287644, 5359555, 6431466, 8575288, 10719110, 12862932, 16078665, 17150576, 21438220, 25725864, 32157330, 42876440, 51451728, 64314660, 85752880, 128629320, 257258640]

約数ペア:

[(1, 257258640), (2, 128629320), (3, 85752880), (4, 64314660), (5, 51451728), (6, 42876440), (8, 32157330), (10, 25725864), (12, 21438220), (15, 17150576), (16, 16078665), (20, 12862932), (24, 10719110), (30, 8575288), (40, 6431466), (48, 5359555), (60, 4287644), (80, 3215733), (120, 2143822), (240, 1071911)]