25408040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{881}}^1$

素因数の和:1002

約数の個数: 64

約数和(自身を含む): 66044160

約数和(自身を除く): 40636120

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, 881, 1030, 1442, 1762, 2060, 2884, 3524, 3605, 4120, 4405, 5768, 6167, 7048, 7210, 8810, 12334, 14420, 17620, 24668, 28840, 30835, 35240, 49336, 61670, 90743, 123340, 181486, 246680, 362972, 453715, 635201, 725944, 907430, 1270402, 1814860, 2540804, 3176005, 3629720, 5081608, 6352010, 12704020, 25408040]

約数ペア:

[(1, 25408040), (2, 12704020), (4, 6352010), (5, 5081608), (7, 3629720), (8, 3176005), (10, 2540804), (14, 1814860), (20, 1270402), (28, 907430), (35, 725944), (40, 635201), (56, 453715), (70, 362972), (103, 246680), (140, 181486), (206, 123340), (280, 90743), (412, 61670), (515, 49336), (721, 35240), (824, 30835), (881, 28840), (1030, 24668), (1442, 17620), (1762, 14420), (2060, 12334), (2884, 8810), (3524, 7210), (3605, 7048), (4120, 6167), (4405, 5768)]