12485840

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1609}}^1$

素因数の和:1719

約数の個数: 40

約数和(自身を含む): 29347080

約数和(自身を除く): 16861240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 388, 485, 776, 970, 1552, 1609, 1940, 3218, 3880, 6436, 7760, 8045, 12872, 16090, 25744, 32180, 64360, 128720, 156073, 312146, 624292, 780365, 1248584, 1560730, 2497168, 3121460, 6242920, 12485840]

約数ペア:

[(1, 12485840), (2, 6242920), (4, 3121460), (5, 2497168), (8, 1560730), (10, 1248584), (16, 780365), (20, 624292), (40, 312146), (80, 156073), (97, 128720), (194, 64360), (388, 32180), (485, 25744), (776, 16090), (970, 12872), (1552, 8045), (1609, 7760), (1940, 6436), (3218, 3880)]