128144800

素因数分解:

$2^5\times 5^2\times 7^3\times {\mathrm{467}}^1$

素因数の和:508

約数の個数: 144

約数和(自身を含む): 365601600

約数和(自身を除く): 237456800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 49, 50, 56, 70, 80, 98, 100, 112, 140, 160, 175, 196, 200, 224, 245, 280, 343, 350, 392, 400, 467, 490, 560, 686, 700, 784, 800, 934, 980, 1120, 1225, 1372, 1400, 1568, 1715, 1868, 1960, 2335, 2450, 2744, 2800, 3269, 3430, 3736, 3920, 4670, 4900, 5488, 5600, 6538, 6860, 7472, 7840, 8575, 9340, 9800, 10976, 11675, 13076, 13720, 14944, 16345, 17150, 18680, 19600, 22883, 23350, 26152, 27440, 32690, 34300, 37360, 39200, 45766, 46700, 52304, 54880, 65380, 68600, 74720, 81725, 91532, 93400, 104608, 114415, 130760, 137200, 160181, 163450, 183064, 186800, 228830, 261520, 274400, 320362, 326900, 366128, 373600, 457660, 523040, 572075, 640724, 653800, 732256, 800905, 915320, 1144150, 1281448, 1307600, 1601810, 1830640, 2288300, 2562896, 2615200, 3203620, 3661280, 4004525, 4576600, 5125792, 6407240, 8009050, 9153200, 12814480, 16018100, 18306400, 25628960, 32036200, 64072400, 128144800]

約数ペア:

[(1, 128144800), (2, 64072400), (4, 32036200), (5, 25628960), (7, 18306400), (8, 16018100), (10, 12814480), (14, 9153200), (16, 8009050), (20, 6407240), (25, 5125792), (28, 4576600), (32, 4004525), (35, 3661280), (40, 3203620), (49, 2615200), (50, 2562896), (56, 2288300), (70, 1830640), (80, 1601810), (98, 1307600), (100, 1281448), (112, 1144150), (140, 915320), (160, 800905), (175, 732256), (196, 653800), (200, 640724), (224, 572075), (245, 523040), (280, 457660), (343, 373600), (350, 366128), (392, 326900), (400, 320362), (467, 274400), (490, 261520), (560, 228830), (686, 186800), (700, 183064), (784, 163450), (800, 160181), (934, 137200), (980, 130760), (1120, 114415), (1225, 104608), (1372, 93400), (1400, 91532), (1568, 81725), (1715, 74720), (1868, 68600), (1960, 65380), (2335, 54880), (2450, 52304), (2744, 46700), (2800, 45766), (3269, 39200), (3430, 37360), (3736, 34300), (3920, 32690), (4670, 27440), (4900, 26152), (5488, 23350), (5600, 22883), (6538, 19600), (6860, 18680), (7472, 17150), (7840, 16345), (8575, 14944), (9340, 13720), (9800, 13076), (10976, 11675)]