8841980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{461}}^1$

素因数の和:614

約数の個数: 48

約数和(自身を含む): 21422016

約数和(自身を除く): 12580036

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 137, 140, 274, 461, 548, 685, 922, 959, 1370, 1844, 1918, 2305, 2740, 3227, 3836, 4610, 4795, 6454, 9220, 9590, 12908, 16135, 19180, 32270, 63157, 64540, 126314, 252628, 315785, 442099, 631570, 884198, 1263140, 1768396, 2210495, 4420990, 8841980]

約数ペア:

[(1, 8841980), (2, 4420990), (4, 2210495), (5, 1768396), (7, 1263140), (10, 884198), (14, 631570), (20, 442099), (28, 315785), (35, 252628), (70, 126314), (137, 64540), (140, 63157), (274, 32270), (461, 19180), (548, 16135), (685, 12908), (922, 9590), (959, 9220), (1370, 6454), (1844, 4795), (1918, 4610), (2305, 3836), (2740, 3227)]