25315780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{857}}^1$

素因数の和:1084

約数の個数: 48

約数和(自身を含む): 61117056

約数和(自身を除く): 35801276

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 211, 422, 844, 857, 1055, 1477, 1714, 2110, 2954, 3428, 4220, 4285, 5908, 5999, 7385, 8570, 11998, 14770, 17140, 23996, 29540, 29995, 59990, 119980, 180827, 361654, 723308, 904135, 1265789, 1808270, 2531578, 3616540, 5063156, 6328945, 12657890, 25315780]

約数ペア:

[(1, 25315780), (2, 12657890), (4, 6328945), (5, 5063156), (7, 3616540), (10, 2531578), (14, 1808270), (20, 1265789), (28, 904135), (35, 723308), (70, 361654), (140, 180827), (211, 119980), (422, 59990), (844, 29995), (857, 29540), (1055, 23996), (1477, 17140), (1714, 14770), (2110, 11998), (2954, 8570), (3428, 7385), (4220, 5999), (4285, 5908)]