20123265740

素因数分解:

$2^2\times 5^1\times {\mathrm{547}}^1\times {\mathrm{647}}^1\times {\mathrm{2843}}^1$

素因数の和:4046

約数の個数: 48

約数和(自身を含む): 42416462592

約数和(自身を除く): 22293196852

約数列:

[1, 2, 4, 5, 10, 20, 547, 647, 1094, 1294, 2188, 2588, 2735, 2843, 3235, 5470, 5686, 6470, 10940, 11372, 12940, 14215, 28430, 56860, 353909, 707818, 1415636, 1555121, 1769545, 1839421, 3110242, 3539090, 3678842, 6220484, 7078180, 7357684, 7775605, 9197105, 15551210, 18394210, 31102420, 36788420, 1006163287, 2012326574, 4024653148, 5030816435, 10061632870, 20123265740]

約数ペア:

[(1, 20123265740), (2, 10061632870), (4, 5030816435), (5, 4024653148), (10, 2012326574), (20, 1006163287), (547, 36788420), (647, 31102420), (1094, 18394210), (1294, 15551210), (2188, 9197105), (2588, 7775605), (2735, 7357684), (2843, 7078180), (3235, 6220484), (5470, 3678842), (5686, 3539090), (6470, 3110242), (10940, 1839421), (11372, 1769545), (12940, 1555121), (14215, 1415636), (28430, 707818), (56860, 353909)]