25487720

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{6569}}^1$

素因数の和:6677

約数の個数: 32

約数和(自身を含む): 57947400

約数和(自身を除く): 32459680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 6569, 13138, 26276, 32845, 52552, 65690, 131380, 262760, 637193, 1274386, 2548772, 3185965, 5097544, 6371930, 12743860, 25487720]

約数ペア:

[(1, 25487720), (2, 12743860), (4, 6371930), (5, 5097544), (8, 3185965), (10, 2548772), (20, 1274386), (40, 637193), (97, 262760), (194, 131380), (388, 65690), (485, 52552), (776, 32845), (970, 26276), (1940, 13138), (3880, 6569)]