12871400

素因数分解:

$2^3\times 5^2\times {\mathrm{139}}^1\times {\mathrm{463}}^1$

素因数の和:618

約数の個数: 48

約数和(自身を含む): 30206400

約数和(自身を除く): 17335000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 139, 200, 278, 463, 556, 695, 926, 1112, 1390, 1852, 2315, 2780, 3475, 3704, 4630, 5560, 6950, 9260, 11575, 13900, 18520, 23150, 27800, 46300, 64357, 92600, 128714, 257428, 321785, 514856, 643570, 1287140, 1608925, 2574280, 3217850, 6435700, 12871400]

約数ペア:

[(1, 12871400), (2, 6435700), (4, 3217850), (5, 2574280), (8, 1608925), (10, 1287140), (20, 643570), (25, 514856), (40, 321785), (50, 257428), (100, 128714), (139, 92600), (200, 64357), (278, 46300), (463, 27800), (556, 23150), (695, 18520), (926, 13900), (1112, 11575), (1390, 9260), (1852, 6950), (2315, 5560), (2780, 4630), (3475, 3704)]