78976100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{257}}^1\times {\mathrm{439}}^1$

素因数の和:717

約数の個数: 72

約数和(自身を含む): 197070720

約数和(自身を除く): 118094620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 257, 350, 439, 514, 700, 878, 1028, 1285, 1756, 1799, 2195, 2570, 3073, 3598, 4390, 5140, 6146, 6425, 7196, 8780, 8995, 10975, 12292, 12850, 15365, 17990, 21950, 25700, 30730, 35980, 43900, 44975, 61460, 76825, 89950, 112823, 153650, 179900, 225646, 307300, 451292, 564115, 789761, 1128230, 1579522, 2256460, 2820575, 3159044, 3948805, 5641150, 7897610, 11282300, 15795220, 19744025, 39488050, 78976100]

約数ペア:

[(1, 78976100), (2, 39488050), (4, 19744025), (5, 15795220), (7, 11282300), (10, 7897610), (14, 5641150), (20, 3948805), (25, 3159044), (28, 2820575), (35, 2256460), (50, 1579522), (70, 1128230), (100, 789761), (140, 564115), (175, 451292), (257, 307300), (350, 225646), (439, 179900), (514, 153650), (700, 112823), (878, 89950), (1028, 76825), (1285, 61460), (1756, 44975), (1799, 43900), (2195, 35980), (2570, 30730), (3073, 25700), (3598, 21950), (4390, 17990), (5140, 15365), (6146, 12850), (6425, 12292), (7196, 10975), (8780, 8995)]