328657980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{782519}}^1$

素因数の和:782538

約数の個数: 48

約数和(自身を含む): 1051706880

約数和(自身を除く): 723048900

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 782519, 1565038, 2347557, 3130076, 3912595, 4695114, 5477633, 7825190, 9390228, 10955266, 11737785, 15650380, 16432899, 21910532, 23475570, 27388165, 32865798, 46951140, 54776330, 65731596, 82164495, 109552660, 164328990, 328657980]

約数ペア:

[(1, 328657980), (2, 164328990), (3, 109552660), (4, 82164495), (5, 65731596), (6, 54776330), (7, 46951140), (10, 32865798), (12, 27388165), (14, 23475570), (15, 21910532), (20, 16432899), (21, 15650380), (28, 11737785), (30, 10955266), (35, 9390228), (42, 7825190), (60, 5477633), (70, 4695114), (84, 3912595), (105, 3130076), (140, 2347557), (210, 1565038), (420, 782519)]