25465720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{883}}^1$

素因数の和:1004

約数の個数: 64

約数和(自身を含む): 66193920

約数和(自身を除く): 40728200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 103, 140, 206, 280, 412, 515, 721, 824, 883, 1030, 1442, 1766, 2060, 2884, 3532, 3605, 4120, 4415, 5768, 6181, 7064, 7210, 8830, 12362, 14420, 17660, 24724, 28840, 30905, 35320, 49448, 61810, 90949, 123620, 181898, 247240, 363796, 454745, 636643, 727592, 909490, 1273286, 1818980, 2546572, 3183215, 3637960, 5093144, 6366430, 12732860, 25465720]

約数ペア:

[(1, 25465720), (2, 12732860), (4, 6366430), (5, 5093144), (7, 3637960), (8, 3183215), (10, 2546572), (14, 1818980), (20, 1273286), (28, 909490), (35, 727592), (40, 636643), (56, 454745), (70, 363796), (103, 247240), (140, 181898), (206, 123620), (280, 90949), (412, 61810), (515, 49448), (721, 35320), (824, 30905), (883, 28840), (1030, 24724), (1442, 17660), (1766, 14420), (2060, 12362), (2884, 8830), (3532, 7210), (3605, 7064), (4120, 6181), (4415, 5768)]