247974160

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{1723}}^1$

素因数の和:2000

約数の個数: 80

約数和(自身を含む): 661850496

約数和(自身を除く): 413876336

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 257, 280, 514, 560, 1028, 1285, 1723, 1799, 2056, 2570, 3446, 3598, 4112, 5140, 6892, 7196, 8615, 8995, 10280, 12061, 13784, 14392, 17230, 17990, 20560, 24122, 27568, 28784, 34460, 35980, 48244, 60305, 68920, 71960, 96488, 120610, 137840, 143920, 192976, 241220, 442811, 482440, 885622, 964880, 1771244, 2214055, 3099677, 3542488, 4428110, 6199354, 7084976, 8856220, 12398708, 15498385, 17712440, 24797416, 30996770, 35424880, 49594832, 61993540, 123987080, 247974160]

約数ペア:

[(1, 247974160), (2, 123987080), (4, 61993540), (5, 49594832), (7, 35424880), (8, 30996770), (10, 24797416), (14, 17712440), (16, 15498385), (20, 12398708), (28, 8856220), (35, 7084976), (40, 6199354), (56, 4428110), (70, 3542488), (80, 3099677), (112, 2214055), (140, 1771244), (257, 964880), (280, 885622), (514, 482440), (560, 442811), (1028, 241220), (1285, 192976), (1723, 143920), (1799, 137840), (2056, 120610), (2570, 96488), (3446, 71960), (3598, 68920), (4112, 60305), (5140, 48244), (6892, 35980), (7196, 34460), (8615, 28784), (8995, 27568), (10280, 24122), (12061, 20560), (13784, 17990), (14392, 17230)]