20161750

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{281}}^1$

素因数の和:346

約数の個数: 64

約数和(自身を含む): 44343936

約数和(自身を除く): 24182186

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 41, 50, 70, 82, 125, 175, 205, 250, 281, 287, 350, 410, 562, 574, 875, 1025, 1405, 1435, 1750, 1967, 2050, 2810, 2870, 3934, 5125, 7025, 7175, 9835, 10250, 11521, 14050, 14350, 19670, 23042, 35125, 35875, 49175, 57605, 70250, 71750, 80647, 98350, 115210, 161294, 245875, 288025, 403235, 491750, 576050, 806470, 1440125, 2016175, 2880250, 4032350, 10080875, 20161750]

約数ペア:

[(1, 20161750), (2, 10080875), (5, 4032350), (7, 2880250), (10, 2016175), (14, 1440125), (25, 806470), (35, 576050), (41, 491750), (50, 403235), (70, 288025), (82, 245875), (125, 161294), (175, 115210), (205, 98350), (250, 80647), (281, 71750), (287, 70250), (350, 57605), (410, 49175), (562, 35875), (574, 35125), (875, 23042), (1025, 19670), (1405, 14350), (1435, 14050), (1750, 11521), (1967, 10250), (2050, 9835), (2810, 7175), (2870, 7025), (3934, 5125)]