820904

素因数分解:

$2^3\times 7^1\times {\mathrm{107}}^1\times {\mathrm{137}}^1$

素因数の和:257

約数の個数: 32

約数和(自身を含む): 1788480

約数和(自身を除く): 967576

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 107, 137, 214, 274, 428, 548, 749, 856, 959, 1096, 1498, 1918, 2996, 3836, 5992, 7672, 14659, 29318, 58636, 102613, 117272, 205226, 410452, 820904]

約数ペア:

[(1, 820904), (2, 410452), (4, 205226), (7, 117272), (8, 102613), (14, 58636), (28, 29318), (56, 14659), (107, 7672), (137, 5992), (214, 3836), (274, 2996), (428, 1918), (548, 1498), (749, 1096), (856, 959)]