12726640

素因数分解:

$2^4\times 5^1\times {\mathrm{257}}^1\times {\mathrm{619}}^1$

素因数の和:889

約数の個数: 40

約数和(自身を含む): 29752560

約数和(自身を除く): 17025920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 257, 514, 619, 1028, 1238, 1285, 2056, 2476, 2570, 3095, 4112, 4952, 5140, 6190, 9904, 10280, 12380, 20560, 24760, 49520, 159083, 318166, 636332, 795415, 1272664, 1590830, 2545328, 3181660, 6363320, 12726640]

約数ペア:

[(1, 12726640), (2, 6363320), (4, 3181660), (5, 2545328), (8, 1590830), (10, 1272664), (16, 795415), (20, 636332), (40, 318166), (80, 159083), (257, 49520), (514, 24760), (619, 20560), (1028, 12380), (1238, 10280), (1285, 9904), (2056, 6190), (2476, 5140), (2570, 4952), (3095, 4112)]