12563440

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1619}}^1$

素因数の和:1729

約数の個数: 40

約数和(自身を含む): 29529360

約数和(自身を除く): 16965920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 388, 485, 776, 970, 1552, 1619, 1940, 3238, 3880, 6476, 7760, 8095, 12952, 16190, 25904, 32380, 64760, 129520, 157043, 314086, 628172, 785215, 1256344, 1570430, 2512688, 3140860, 6281720, 12563440]

約数ペア:

[(1, 12563440), (2, 6281720), (4, 3140860), (5, 2512688), (8, 1570430), (10, 1256344), (16, 785215), (20, 628172), (40, 314086), (80, 157043), (97, 129520), (194, 64760), (388, 32380), (485, 25904), (776, 16190), (970, 12952), (1552, 8095), (1619, 7760), (1940, 6476), (3238, 3880)]