80820400

素因数分解:

$2^4\times 5^2\times {\mathrm{97}}^1\times {\mathrm{2083}}^1$

素因数の和:2198

約数の個数: 60

約数和(自身を含む): 196266952

約数和(自身を除く): 115446552

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 97, 100, 194, 200, 388, 400, 485, 776, 970, 1552, 1940, 2083, 2425, 3880, 4166, 4850, 7760, 8332, 9700, 10415, 16664, 19400, 20830, 33328, 38800, 41660, 52075, 83320, 104150, 166640, 202051, 208300, 404102, 416600, 808204, 833200, 1010255, 1616408, 2020510, 3232816, 4041020, 5051275, 8082040, 10102550, 16164080, 20205100, 40410200, 80820400]

約数ペア:

[(1, 80820400), (2, 40410200), (4, 20205100), (5, 16164080), (8, 10102550), (10, 8082040), (16, 5051275), (20, 4041020), (25, 3232816), (40, 2020510), (50, 1616408), (80, 1010255), (97, 833200), (100, 808204), (194, 416600), (200, 404102), (388, 208300), (400, 202051), (485, 166640), (776, 104150), (970, 83320), (1552, 52075), (1940, 41660), (2083, 38800), (2425, 33328), (3880, 20830), (4166, 19400), (4850, 16664), (7760, 10415), (8332, 9700)]