12487760

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1123}}^1$

素因数の和:1275

約数の個数: 40

約数和(自身を含む): 29268960

約数和(自身を除く): 16781200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 556, 695, 1112, 1123, 1390, 2224, 2246, 2780, 4492, 5560, 5615, 8984, 11120, 11230, 17968, 22460, 44920, 89840, 156097, 312194, 624388, 780485, 1248776, 1560970, 2497552, 3121940, 6243880, 12487760]

約数ペア:

[(1, 12487760), (2, 6243880), (4, 3121940), (5, 2497552), (8, 1560970), (10, 1248776), (16, 780485), (20, 624388), (40, 312194), (80, 156097), (139, 89840), (278, 44920), (556, 22460), (695, 17968), (1112, 11230), (1123, 11120), (1390, 8984), (2224, 5615), (2246, 5560), (2780, 4492)]