19401780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{191}}^1\times {\mathrm{1693}}^1$

素因数の和:1896

約数の個数: 48

約数和(自身を含む): 54641664

約数和(自身を除く): 35239884

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 191, 382, 573, 764, 955, 1146, 1693, 1910, 2292, 2865, 3386, 3820, 5079, 5730, 6772, 8465, 10158, 11460, 16930, 20316, 25395, 33860, 50790, 101580, 323363, 646726, 970089, 1293452, 1616815, 1940178, 3233630, 3880356, 4850445, 6467260, 9700890, 19401780]

約数ペア:

[(1, 19401780), (2, 9700890), (3, 6467260), (4, 4850445), (5, 3880356), (6, 3233630), (10, 1940178), (12, 1616815), (15, 1293452), (20, 970089), (30, 646726), (60, 323363), (191, 101580), (382, 50790), (573, 33860), (764, 25395), (955, 20316), (1146, 16930), (1693, 11460), (1910, 10158), (2292, 8465), (2865, 6772), (3386, 5730), (3820, 5079)]