20625808

素因数分解:

$2^4\times 7^1\times {\mathrm{61}}^1\times {\mathrm{3019}}^1$

素因数の和:3095

約数の個数: 40

約数和(自身を含む): 46435520

約数和(自身を除く): 25809712

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 61, 112, 122, 244, 427, 488, 854, 976, 1708, 3019, 3416, 6038, 6832, 12076, 21133, 24152, 42266, 48304, 84532, 169064, 184159, 338128, 368318, 736636, 1289113, 1473272, 2578226, 2946544, 5156452, 10312904, 20625808]

約数ペア:

[(1, 20625808), (2, 10312904), (4, 5156452), (7, 2946544), (8, 2578226), (14, 1473272), (16, 1289113), (28, 736636), (56, 368318), (61, 338128), (112, 184159), (122, 169064), (244, 84532), (427, 48304), (488, 42266), (854, 24152), (976, 21133), (1708, 12076), (3019, 6832), (3416, 6038)]