210008090900

素因数分解:

$2^2\times 5^2\times {\mathrm{1279}}^1\times {\mathrm{1641971}}^1$

素因数の和:1643264

約数の個数: 36

約数和(自身を含む): 456074142720

約数和(自身を除く): 246066051820

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 1279, 2558, 5116, 6395, 12790, 25580, 31975, 63950, 127900, 1641971, 3283942, 6567884, 8209855, 16419710, 32839420, 41049275, 82098550, 164197100, 2100080909, 4200161818, 8400323636, 10500404545, 21000809090, 42001618180, 52502022725, 105004045450, 210008090900]

約数ペア:

[(1, 210008090900), (2, 105004045450), (4, 52502022725), (5, 42001618180), (10, 21000809090), (20, 10500404545), (25, 8400323636), (50, 4200161818), (100, 2100080909), (1279, 164197100), (2558, 82098550), (5116, 41049275), (6395, 32839420), (12790, 16419710), (25580, 8209855), (31975, 6567884), (63950, 3283942), (127900, 1641971)]