31255980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{74419}}^1$

素因数の和:74438

約数の個数: 48

約数和(自身を含む): 100020480

約数和(自身を除く): 68764500

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 74419, 148838, 223257, 297676, 372095, 446514, 520933, 744190, 893028, 1041866, 1116285, 1488380, 1562799, 2083732, 2232570, 2604665, 3125598, 4465140, 5209330, 6251196, 7813995, 10418660, 15627990, 31255980]

約数ペア:

[(1, 31255980), (2, 15627990), (3, 10418660), (4, 7813995), (5, 6251196), (6, 5209330), (7, 4465140), (10, 3125598), (12, 2604665), (14, 2232570), (15, 2083732), (20, 1562799), (21, 1488380), (28, 1116285), (30, 1041866), (35, 893028), (42, 744190), (60, 520933), (70, 446514), (84, 372095), (105, 297676), (140, 223257), (210, 148838), (420, 74419)]