256753920

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{66863}}^1$

素因数の和:66887

約数の個数: 72

約数和(自身を含む): 820020096

約数和(自身を除く): 563266176

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 640, 768, 960, 1280, 1920, 3840, 66863, 133726, 200589, 267452, 334315, 401178, 534904, 668630, 802356, 1002945, 1069808, 1337260, 1604712, 2005890, 2139616, 2674520, 3209424, 4011780, 4279232, 5349040, 6418848, 8023560, 8558464, 10698080, 12837696, 16047120, 17116928, 21396160, 25675392, 32094240, 42792320, 51350784, 64188480, 85584640, 128376960, 256753920]

約数ペア:

[(1, 256753920), (2, 128376960), (3, 85584640), (4, 64188480), (5, 51350784), (6, 42792320), (8, 32094240), (10, 25675392), (12, 21396160), (15, 17116928), (16, 16047120), (20, 12837696), (24, 10698080), (30, 8558464), (32, 8023560), (40, 6418848), (48, 5349040), (60, 4279232), (64, 4011780), (80, 3209424), (96, 2674520), (120, 2139616), (128, 2005890), (160, 1604712), (192, 1337260), (240, 1069808), (256, 1002945), (320, 802356), (384, 668630), (480, 534904), (640, 401178), (768, 334315), (960, 267452), (1280, 200589), (1920, 133726), (3840, 66863)]