28166075

素因数分解:

$5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1$

素因数の和:276

約数の個数: 48

約数和(自身を含む): 43211520

約数和(自身を除く): 15045445

約数列:

[1, 5, 7, 19, 25, 35, 43, 95, 133, 175, 197, 215, 301, 475, 665, 817, 985, 1075, 1379, 1505, 3325, 3743, 4085, 4925, 5719, 6895, 7525, 8471, 18715, 20425, 26201, 28595, 34475, 42355, 59297, 93575, 131005, 142975, 160949, 211775, 296485, 655025, 804745, 1126643, 1482425, 4023725, 5633215, 28166075]

約数ペア:

[(1, 28166075), (5, 5633215), (7, 4023725), (19, 1482425), (25, 1126643), (35, 804745), (43, 655025), (95, 296485), (133, 211775), (175, 160949), (197, 142975), (215, 131005), (301, 93575), (475, 59297), (665, 42355), (817, 34475), (985, 28595), (1075, 26201), (1379, 20425), (1505, 18715), (3325, 8471), (3743, 7525), (4085, 6895), (4925, 5719)]