25809760

素因数分解:

$2^5\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1663}}^1$

素因数の和:1775

約数の個数: 48

約数和(自身を含む): 61641216

約数和(自身を除く): 35831456

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 97, 160, 194, 388, 485, 776, 970, 1552, 1663, 1940, 3104, 3326, 3880, 6652, 7760, 8315, 13304, 15520, 16630, 26608, 33260, 53216, 66520, 133040, 161311, 266080, 322622, 645244, 806555, 1290488, 1613110, 2580976, 3226220, 5161952, 6452440, 12904880, 25809760]

約数ペア:

[(1, 25809760), (2, 12904880), (4, 6452440), (5, 5161952), (8, 3226220), (10, 2580976), (16, 1613110), (20, 1290488), (32, 806555), (40, 645244), (80, 322622), (97, 266080), (160, 161311), (194, 133040), (388, 66520), (485, 53216), (776, 33260), (970, 26608), (1552, 16630), (1663, 15520), (1940, 13304), (3104, 8315), (3326, 7760), (3880, 6652)]