20514256

素因数分解:

$2^4\times 7^1\times {\mathrm{151}}^1\times {\mathrm{1213}}^1$

素因数の和:1379

約数の個数: 40

約数和(自身を含む): 45762944

約数和(自身を除く): 25248688

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 151, 302, 604, 1057, 1208, 1213, 2114, 2416, 2426, 4228, 4852, 8456, 8491, 9704, 16912, 16982, 19408, 33964, 67928, 135856, 183163, 366326, 732652, 1282141, 1465304, 2564282, 2930608, 5128564, 10257128, 20514256]

約数ペア:

[(1, 20514256), (2, 10257128), (4, 5128564), (7, 2930608), (8, 2564282), (14, 1465304), (16, 1282141), (28, 732652), (56, 366326), (112, 183163), (151, 135856), (302, 67928), (604, 33964), (1057, 19408), (1208, 16982), (1213, 16912), (2114, 9704), (2416, 8491), (2426, 8456), (4228, 4852)]