209210920

素因数分解:

$2^3\times 5^1\times {\mathrm{167}}^1\times {\mathrm{31319}}^1$

素因数の和:31497

約数の個数: 32

約数和(自身を含む): 473558400

約数和(自身を除く): 264347480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 167, 334, 668, 835, 1336, 1670, 3340, 6680, 31319, 62638, 125276, 156595, 250552, 313190, 626380, 1252760, 5230273, 10460546, 20921092, 26151365, 41842184, 52302730, 104605460, 209210920]

約数ペア:

[(1, 209210920), (2, 104605460), (4, 52302730), (5, 41842184), (8, 26151365), (10, 20921092), (20, 10460546), (40, 5230273), (167, 1252760), (334, 626380), (668, 313190), (835, 250552), (1336, 156595), (1670, 125276), (3340, 62638), (6680, 31319)]