20155856

素因数分解:

$2^4\times 7^2\times {\mathrm{47}}^1\times {\mathrm{547}}^1$

素因数の和:616

約数の個数: 60

約数和(自身を含む): 46479168

約数和(自身を除く): 26323312

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 47, 49, 56, 94, 98, 112, 188, 196, 329, 376, 392, 547, 658, 752, 784, 1094, 1316, 2188, 2303, 2632, 3829, 4376, 4606, 5264, 7658, 8752, 9212, 15316, 18424, 25709, 26803, 30632, 36848, 51418, 53606, 61264, 102836, 107212, 179963, 205672, 214424, 359926, 411344, 428848, 719852, 1259741, 1439704, 2519482, 2879408, 5038964, 10077928, 20155856]

約数ペア:

[(1, 20155856), (2, 10077928), (4, 5038964), (7, 2879408), (8, 2519482), (14, 1439704), (16, 1259741), (28, 719852), (47, 428848), (49, 411344), (56, 359926), (94, 214424), (98, 205672), (112, 179963), (188, 107212), (196, 102836), (329, 61264), (376, 53606), (392, 51418), (547, 36848), (658, 30632), (752, 26803), (784, 25709), (1094, 18424), (1316, 15316), (2188, 9212), (2303, 8752), (2632, 7658), (3829, 5264), (4376, 4606)]