12704020

素因数分解:

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

素因数の和:1000

約数の個数: 48

約数和(自身を含む): 30820608

約数和(自身を除く): 18116588

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 103, 140, 206, 412, 515, 721, 881, 1030, 1442, 1762, 2060, 2884, 3524, 3605, 4405, 6167, 7210, 8810, 12334, 14420, 17620, 24668, 30835, 61670, 90743, 123340, 181486, 362972, 453715, 635201, 907430, 1270402, 1814860, 2540804, 3176005, 6352010, 12704020]

約数ペア:

[(1, 12704020), (2, 6352010), (4, 3176005), (5, 2540804), (7, 1814860), (10, 1270402), (14, 907430), (20, 635201), (28, 453715), (35, 362972), (70, 181486), (103, 123340), (140, 90743), (206, 61670), (412, 30835), (515, 24668), (721, 17620), (881, 14420), (1030, 12334), (1442, 8810), (1762, 7210), (2060, 6167), (2884, 4405), (3524, 3605)]