205717540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{8209}}^1$

素因数の和:8404

約数の個数: 48

約数和(自身を含む): 496540800

約数和(自身を除く): 290823260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 179, 358, 716, 895, 1253, 1790, 2506, 3580, 5012, 6265, 8209, 12530, 16418, 25060, 32836, 41045, 57463, 82090, 114926, 164180, 229852, 287315, 574630, 1149260, 1469411, 2938822, 5877644, 7347055, 10285877, 14694110, 20571754, 29388220, 41143508, 51429385, 102858770, 205717540]

約数ペア:

[(1, 205717540), (2, 102858770), (4, 51429385), (5, 41143508), (7, 29388220), (10, 20571754), (14, 14694110), (20, 10285877), (28, 7347055), (35, 5877644), (70, 2938822), (140, 1469411), (179, 1149260), (358, 574630), (716, 287315), (895, 229852), (1253, 164180), (1790, 114926), (2506, 82090), (3580, 57463), (5012, 41045), (6265, 32836), (8209, 25060), (12530, 16418)]