25453280

素因数分解:

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

素因数の和:891

約数の個数: 48

約数和(自身を含む): 60464880

約数和(自身を除く): 35011600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 257, 514, 619, 1028, 1238, 1285, 2056, 2476, 2570, 3095, 4112, 4952, 5140, 6190, 8224, 9904, 10280, 12380, 19808, 20560, 24760, 41120, 49520, 99040, 159083, 318166, 636332, 795415, 1272664, 1590830, 2545328, 3181660, 5090656, 6363320, 12726640, 25453280]

約数ペア:

[(1, 25453280), (2, 12726640), (4, 6363320), (5, 5090656), (8, 3181660), (10, 2545328), (16, 1590830), (20, 1272664), (32, 795415), (40, 636332), (80, 318166), (160, 159083), (257, 99040), (514, 49520), (619, 41120), (1028, 24760), (1238, 20560), (1285, 19808), (2056, 12380), (2476, 10280), (2570, 9904), (3095, 8224), (4112, 6190), (4952, 5140)]