8074780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{421}}^1$

素因数の和:574

約数の個数: 48

約数和(自身を含む): 19567296

約数和(自身を除く): 11492516

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 137, 140, 274, 421, 548, 685, 842, 959, 1370, 1684, 1918, 2105, 2740, 2947, 3836, 4210, 4795, 5894, 8420, 9590, 11788, 14735, 19180, 29470, 57677, 58940, 115354, 230708, 288385, 403739, 576770, 807478, 1153540, 1614956, 2018695, 4037390, 8074780]

約数ペア:

[(1, 8074780), (2, 4037390), (4, 2018695), (5, 1614956), (7, 1153540), (10, 807478), (14, 576770), (20, 403739), (28, 288385), (35, 230708), (70, 115354), (137, 58940), (140, 57677), (274, 29470), (421, 19180), (548, 14735), (685, 11788), (842, 9590), (959, 8420), (1370, 5894), (1684, 4795), (1918, 4210), (2105, 3836), (2740, 2947)]