18684680

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{9533}}^1$

素因数の和:9558

約数の個数: 48

約数和(自身を含む): 48909420

約数和(自身を除く): 30224740

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 9533, 19066, 38132, 47665, 66731, 76264, 95330, 133462, 190660, 266924, 333655, 381320, 467117, 533848, 667310, 934234, 1334620, 1868468, 2335585, 2669240, 3736936, 4671170, 9342340, 18684680]

約数ペア:

[(1, 18684680), (2, 9342340), (4, 4671170), (5, 3736936), (7, 2669240), (8, 2335585), (10, 1868468), (14, 1334620), (20, 934234), (28, 667310), (35, 533848), (40, 467117), (49, 381320), (56, 333655), (70, 266924), (98, 190660), (140, 133462), (196, 95330), (245, 76264), (280, 66731), (392, 47665), (490, 38132), (980, 19066), (1960, 9533)]