12450920

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{3209}}^1$

素因数の和:3317

約数の個数: 32

約数和(自身を含む): 28312200

約数和(自身を除く): 15861280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3209, 3880, 6418, 12836, 16045, 25672, 32090, 64180, 128360, 311273, 622546, 1245092, 1556365, 2490184, 3112730, 6225460, 12450920]

約数ペア:

[(1, 12450920), (2, 6225460), (4, 3112730), (5, 2490184), (8, 1556365), (10, 1245092), (20, 622546), (40, 311273), (97, 128360), (194, 64180), (388, 32090), (485, 25672), (776, 16045), (970, 12836), (1940, 6418), (3209, 3880)]